{"title":"Electromagnetism","description":"\u003cp\u003eExplore the close relationship between electricity and magnetism with your students using tools from this wide range of electromagnetic activities!\u003c\/p\u003e","products":[{"product_id":"compass","title":"Compass","description":"\u003cp\u003eSmall student magnetic compass\u003c\/p\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18111652102217,"sku":"33-0050","price":3.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/33-0050Compass2048x2048.jpg?v=1765466108"},{"product_id":"hand-generator","title":"Economy Hand Crank Generator","description":"\u003ch3\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong\u003e\u003cem\u003eBudget-friendly generator for hands-on electricity investigations\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eAn economical alternative to the Genecon, this the \u003cstrong\u003eEconomy Hand Crank Generator \u003c\/strong\u003eallows students to explore how \u003cstrong\u003emechanical energy is converted into electrical energy\u003c\/strong\u003e. The clear plastic casing reveals the internal motor, gears, and wiring, helping students connect physical motion to electrical output. Convenient screw terminals make it easy to connect circuits, while a built-in mini light bulb provides immediate visual feedback that electricity is being generated. With a maximum output of 7.5 volts, it’s ideal for introductory electricity investigations.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eWhy Teachers Love the Economy Hand Crank Generator\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBudget-friendly generator:\u003c\/strong\u003e Not a Genecon—but half the price, making it practical for classroom sets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible internal components:\u003c\/strong\u003e Clear casing lets students see gears, wiring, and the motor in action.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy experiment setup: \u003c\/strong\u003eScrew terminals allow quick, secure circuit connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstant feedback:\u003c\/strong\u003e Built-in mini bulb confirms electricity generation in real time.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18112053411913,"sku":"P6-2550","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P6-2550EconomyHandCrankGenerator2048x2048.jpg?v=1765465969"},{"product_id":"genecon","title":"Genecon Hand Crank Generator","description":"\u003cdiv style=\"margin-bottom:20px\"\u003e\n  \u003cp style=\"font-size:12px;font-weight:500;color:#6b7280;margin-bottom:8px\"\u003eConfiguration\u003c\/p\u003e\n  \u003cdiv style=\"border:2px solid #185FA5;border-radius:8px;padding:10px 14px;background:#E6F1FB;margin-bottom:6px\"\u003e\n    \u003cspan style=\"font-size:14px;font-weight:500;color:#0C447C;display:block\"\u003eGenecon Hand Crank Generator\u003c\/span\u003e\n    \u003cspan style=\"font-size:12px;color:#185FA5;display:block\"\u003eItem #P6-2631 · $47.50\u003c\/span\u003e\n  \u003c\/div\u003e\n  \u003ca href=\"\/products\/complete-genecon-experiment-set\" style=\"display:flex;justify-content:space-between;align-items:center;border:1px solid #d1d5db;border-radius:8px;padding:10px 14px;text-decoration:none;background:#fff\"\u003e\n    \u003cdiv\u003e\n      \u003cspan style=\"font-size:14px;font-weight:500;color:#111;display:block\"\u003eComplete Genecon Experiment Set\u003c\/span\u003e\n      \u003cspan style=\"font-size:12px;color:#6b7280\"\u003eItem #P6-2635 · Includes 2 Genecons + full lab kit\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cspan style=\"font-size:11px;font-weight:500;background:#EAF3DE;color:#3B6D11;padding:3px 10px;border-radius:20px;border:1px solid #C0DD97;white-space:nowrap\"\u003eBundle Discount ›\u003c\/span\u003e\n  \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eHuman-powered electricity that lets students feel energy transfer\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTurn student effort into real electricity. The \u003cstrong\u003eGenecon Hand Crank Generator\u003c\/strong\u003e is a low-voltage power source that replaces batteries in dozens of circuits—students simply crank the handle to produce current, then \u003cem\u003efeel\u003c\/em\u003e the energy transfer through changing resistance in the crank. It’s an instant, hands-on way to make abstract ideas like “voltage,” “current” and “power” concrete.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBecause output depends on how fast students crank, the Genecon naturally leads into great questions about \u003cstrong\u003evoltage\u003c\/strong\u003e, \u003cstrong\u003ecurrent\u003c\/strong\u003e, \u003cstrong\u003eload\u003c\/strong\u003e, and \u003cstrong\u003eefficiency\u003c\/strong\u003e. Crank the opposite direction to reverse polarity, and when powered by another Genecon or low-voltage source, it can act as a motor—perfect for exploring how generators and motors are two sides of the same physics.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love the Genecon Hand-Crank Generator\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA battery replacement students can “be”:\u003c\/strong\u003e Learners supply the energy themselves, making current, voltage, and power feel intuitive.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmediate feedback through the crank:\u003c\/strong\u003e Resistance changes as circuit load changes, so students sense what their circuit is doing.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReversible polarity + motor mode: \u003c\/strong\u003eFlip current direction by cranking backward, and show generator ↔ motor duality in one device.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged, classroom-ready workhorse: \u003c\/strong\u003eBuilt for repeated student use and quick hookups.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NARIKA Corporation","offers":[{"title":"Default Title","offer_id":18112061440073,"sku":"P6-2631","price":47.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P6-2631Genecon2048x2048.jpg?v=1766070909"},{"product_id":"complete-genecon-experiment-set","title":"Complete Genecon Experiment Set","description":"\u003cdiv style=\"margin-bottom:20px\"\u003e\n  \u003cp style=\"font-size:12px;font-weight:500;color:#6b7280;margin-bottom:8px\"\u003eConfiguration\u003c\/p\u003e\n  \u003ca href=\"\/products\/genecon\" style=\"display:flex;justify-content:space-between;align-items:center;border:1px solid #d1d5db;border-radius:8px;padding:10px 14px;text-decoration:none;background:#fff;margin-bottom:6px\"\u003e\n    \u003cdiv\u003e\n      \u003cspan style=\"font-size:14px;font-weight:500;color:#111;display:block\"\u003eGenecon Hand Crank Generator\u003c\/span\u003e\n      \u003cspan style=\"font-size:12px;color:#6b7280\"\u003eItem #P6-2631 · $47.50\u003c\/span\u003e\n    \u003c\/div\u003e\n    \u003cspan style=\"font-size:13px;color:#6b7280\"\u003e›\u003c\/span\u003e\n  \u003c\/a\u003e\n  \u003cdiv style=\"border:2px solid #185FA5;border-radius:8px;padding:10px 14px;background:#E6F1FB\"\u003e\n    \u003cspan style=\"font-size:14px;font-weight:500;color:#0C447C;display:block\"\u003eComplete Genecon Experiment Set\u003c\/span\u003e\n    \u003cspan style=\"font-size:12px;color:#185FA5;display:block\"\u003eIncludes 2 Genecons + full lab kit\u003c\/span\u003e\n    \u003cspan style=\"font-size:11px;font-weight:500;background:#EAF3DE;color:#3B6D11;padding:3px 10px;border-radius:20px;border:1px solid #C0DD97;display:inline-block;margin-top:6px\"\u003eBundle Discount\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong\u003e\u003cem\u003eComplete electricity experiment kit with hand generators\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eComplete Genecon® Experiment Set\u003c\/strong\u003e makes teaching \u003cstrong\u003eelectricity, electromagnetism, and energy conversion\u003c\/strong\u003e clear, hands-on, and comprehensive. This all-in-one hand crank generator kit is designed to take students from \u003cstrong\u003ebasic electrical theory to real-world applications\u003c\/strong\u003e, including practical considerations like fuses and electrical safety. Ideal for middle and high school classrooms—and easily adaptable for other levels—this set removes the guesswork from teaching electricity by putting everything you need into one cohesive system.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eWhy Teachers Love the Genecon® Experiment Set\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-inclusive system: \u003c\/strong\u003eEverything needed to run dozens of electricity experiments is included—no piecing together materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcepts to applications: \u003c\/strong\u003eMoves seamlessly from fundamentals to practical electrical considerations like resistance, storage, and fuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands-on and student-driven:\u003c\/strong\u003e The Genecon® hand generator puts students in control of electricity generation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible for multiple levels: \u003c\/strong\u003eDesigned for middle high and high school, with experiments that can be simplified or expanded.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18112064913481,"sku":"P6-2635","price":215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P6-2635CompleteGeneconExperimentSet2048x2048.jpg?v=1765465973"},{"product_id":"genecon-experiment-set-manual-only","title":"Genecon Experiment Set Manual Only","description":"\u003cp\u003eThis easy-to-follow step by step manual covers all of the principles and phenomena for each of the experiments in the Complete Genecon Experiment Set.\u003c\/p\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18112065962057,"sku":"P6-2635-01","price":9.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P6-2635-01GeneconExperimentSetManualOnly2048x2048.jpg?v=1765465972"},{"product_id":"magnet-wire-spool-100-ft-26-gauge","title":"Magnet Wire Spool (100 ft, 26 gauge)","description":"\u003cp\u003eEnameled Magnet Wire (26 AWG) is a 100-ft spool of insulated copper wire designed for building and experimenting with electromagnetic devices. The thin enamel coating provides reliable electrical insulation, allowing multiple layers of wire to be wound tightly together without short-circuiting—ideal for coils and compact windings. Commonly used in electromagnets, transformers, Tesla coils, inductors, motors, speakers, and guitar pickups, this 26-gauge magnet wire offers an excellent balance of flexibility and conductivity for classroom demonstrations, electronics projects, and STEM experiments. The durable enamel insulation supports efficient coil construction while maintaining strong electrical performance, making it a versatile choice for physics labs, engineering projects, and hands-on investigations of electromagnetism.\u003c\/p\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18112211320905,"sku":"P8-1190","price":9.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P8-1190MagnetWireSpool2048x2048.jpg?v=1765466006"},{"product_id":"solenoid-air-core","title":"Air Core Solenoid, 10A Max","description":"\u003cp\u003ePerfect for all classroom experiments requiring an external magnetic field, and great for studying induction and the rate of change of magnetic flux through a coil.\u003c\/p\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18112221675593,"sku":"P8-6500","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P8-6500SolenoidAirCore2048x2048.jpg?v=1765466010"},{"product_id":"electric-swing-apparatus","title":"Electric Swing Apparatus","description":"\u003cp\u003eStudy the interaction between a current-carrying wire and a constant magnetic field with the Electric Swing Apparatus.\u003c\/p\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18112223084617,"sku":"P8-8009","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P8-8009ElectricSwing2048x2048.jpg?v=1766165349"},{"product_id":"electromagnet","title":"ElectroMagnet","description":"\u003cp\u003eWith this electromagnet, your students can more easily visualize the relationship between electricity and magnetism.\u003c\/p\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18112223445065,"sku":"P8-8100","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P8-8100ElectroMagnet2048x2048.jpg?v=1765466012"},{"product_id":"worlds-simplest-motor","title":"World's Simplest Motor","description":"\u003ch3\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong\u003e\u003cem\u003eBuild an electric motor with simple materials\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eWorld’s Simplest Motor\u003c\/strong\u003e is an engaging, low-cost demonstration of \u003cstrong\u003eelectromagnetism\u003c\/strong\u003e that brings theory to life. With just a battery, magnet, and simple coil, students can build a functioning motor in seconds—making the invisible forces behind electric motors visible and exciting. Ideal for introducing basic principles of physics and engineering, this motor sparks curiosity and deepens understanding of how electricity and magnetism interact to produce motion.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eWhy Teachers Love the World’s Simplest Motor\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstant hands-on learning:\u003c\/strong\u003e Students build and run a real motor in minutes, reinforcing lessons with tangible results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple yet powerful:\u003c\/strong\u003e Uses minimal materials to demonstrate core concepts of electromagnetism and motor design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHighly engaging:\u003c\/strong\u003e Students are fascinated watching their own creation spin, boosting interest in STEM topics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAffordable and versatile:\u003c\/strong\u003e A great addition to any science classroom, lab, or demonstration toolkit.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tedco","offers":[{"title":"Default Title","offer_id":18112226426953,"sku":"P8-8300","price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P8-8300WorldsSimlpestMotor2048x2048.jpg?v=1765466013"},{"product_id":"homopolar-motor-kit","title":"Homopolar Motor Kit, 10\/Pk","description":"\u003cp\u003eYou've seen the World's Simplest Motor ™. We have a classroom set so you can make one that's even simpler than that...\u003c\/p\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18112227377225,"sku":"P8-8350","price":35.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/HomopolarMotorKit2048x2048.jpg?v=1765466014"},{"product_id":"lenzs-law-apparatus","title":"Lenz's Law Apparatus","description":"\u003cp\u003eExperience the fundamental principle behind electric motors with this demonstration. Drop the strongly magnetized plug through the copper pipe, and induced currents cause it to fall very slowly.\u003c\/p\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18112228098121,"sku":"P8-8400","price":27.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P8-8400Lenz_sLawApparatus2048x2048.jpg?v=1765466016"},{"product_id":"electromagnetic-force-demonstrator","title":"Electromagnetic Force Demonstrator","description":"\u003ch3\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong\u003e\u003cem\u003eApply the Right-Hand Rule to real current and magnetic fields\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eElectromagnetic Force Demonstrator\u003c\/strong\u003e provides a vivid, hands-on way to explore the interaction between \u003cstrong\u003eelectric current\u003c\/strong\u003e and\u003cstrong\u003e magnetic fields\u003c\/strong\u003e. By watching an aluminum pipe move along a track in response to applied current, students see the \u003cstrong\u003eLorentz Force\u003c\/strong\u003e in action. This dynamic demonstration makes abstract electromagnetic concepts tangible, reinforcing the deep connection between electricity and magnetism.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eWhy Teachers Love the Electromagnetic Force Demonstrator\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect link between concepts:\u003c\/strong\u003e Clearly connects current, magnetic fields, and force.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInteractive learning: \u003c\/strong\u003eStudents control current direction and magnitude to observe real-time effects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRight-Hand Rule in action:\u003c\/strong\u003e Provides a concrete way to apply and verify magnetic right-hand rules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemorable demonstration: \u003c\/strong\u003eA real-life model that captures attention and builds understanding.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NARIKA Corporation","offers":[{"title":"Default Title","offer_id":18700741050441,"sku":"P6-2625","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P6-2625ElectromagneticForceDemonstrator2048x2048.jpg?v=1765465971"},{"product_id":"air-core-solenoid-5a-max","title":"Air Core Solenoid, 5A max","description":"\u003ch3\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong\u003e\u003cem\u003eVisualize magnetic fields generated by current in a coil\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAir-Core Solenoid (5A Max)\u003c\/strong\u003e is a must-have apparatus for classrooms exploring \u003cstrong\u003emagnetism, electromagnetic induction, \u003c\/strong\u003eand\u003cstrong\u003e magnetic flux \u003c\/strong\u003ethrough a coil. With approximately 710 turns of enameled copper wire and an inductance of 5 mH, running a current through the coil produces a strong, observable magnetic field—powerful enough to attract small to medium ferromagnetic objects. Its open, air-core design keeps the physics visible and intuitive for students.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eWhy Teachers Love the Air-Core Solenoid (5A Max)\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear, visible magnetism:\u003c\/strong\u003e Easily demonstrates magnetic fields generated by electric current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassroom-ready performance:\u003c\/strong\u003e Strong field with modest current (≤ 5 A) for safe, controlled experiments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcept-focused design: \u003c\/strong\u003eAir-core construction highlights the role of current and coil geometry without added complexity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable and reliable: \u003c\/strong\u003eBuilt for repeated classroom use with consistent results.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":18702108753993,"sku":"P8-6600","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/P8-6600AirCoreSolenoid2048x2048.jpg?v=1766092838"},{"product_id":"deluxe-compass-set-with-re-magnetizing-storage-tray","title":"Deluxe Compass Set with Re-magnetizing Storage Tray","description":"\u003ch3\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong\u003e\u003cem\u003eConsistent compass readings for magnetism and Earth science labs\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDeluxe Compass Set with Re-Magnetizing Storage Tray\u003c\/strong\u003e is a classroom-ready set includes 20 student compasses housed in a stackable metal tray designed not just for storage, but for performance. Two magnetized walls (top and bottom) retain needle alignment, while a built-in calibration zone with embedded neodymium magnets allows compasses to be re-magnetized as needed. The result is consistent, reliable measurements—lab after lab—making studies of magnetism and navigation clearer and more dependable.\u003c\/p\u003e\n\u003cp\u003eThe Deluxe Compass Set with Re-Magnetizing Storage Tray goes beyond simple storage—it actively supports better data, smoother labs, and more confident student investigations into \u003cstrong\u003emagnetism\u003c\/strong\u003e and \u003cstrong\u003eEarth Science\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eWhy Teachers Love the Deluxe Compass Set\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy you can trust:\u003c\/strong\u003e Magnetized tray walls maintain needle alignment between uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in re-magnetizing zone: \u003c\/strong\u003eEmbedded neodymium magnets restore compass accuracy quickly and easily.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent student results: \u003c\/strong\u003eHelps ensure every compass points north, reducing confusion and error.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassroom efficiency:\u003c\/strong\u003e Stackable metal tray keeps 20 compasses organized, protected, and easy to distribute.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NARIKA Corporation","offers":[{"title":"Default Title","offer_id":31155081412681,"sku":"98-1180","price":164.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-1180CompassSetandTray2048x2048.jpg?v=1765466113"},{"product_id":"faradays-law-and-lenzs-law-complete-demo-set","title":"Faraday's Law and Lenz's Law Complete Demo Set","description":"\u003ch3\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003cstrong\u003e\u003cem\u003eShow electromagnetic induction and opposing magnetic forces\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eElectromagnetism doesn’t have to be abstract. Arbor Scientific’s \u003cstrong\u003eFaraday’s Law \u0026amp; Lenz’s Law Complete Demo Set\u003c\/strong\u003e is an \u003cstrong\u003eeducator-innovated, Arbor-exclusive\u003c\/strong\u003e system that contains everything needed for a show-stopping\u003cstrong\u003e electromagnetism \u003c\/strong\u003edemonstration. Students watch in amazement as a powerful magnet drops into a copper collar and nearly comes to a dead stop. It looks like magic—but this demo set reveals what’s really happening: it’s not magic, it’s physics.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eWhy Teachers Love the Faraday’s Law and Lenz’s Law Complete Demo Set\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurns abstract into concrete:\u003c\/strong\u003e Instead of relying only on hand rules, students observe real, tangible effects and use them to drive discussion and inquiry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for open-ended exploration: \u003c\/strong\u003eThe dramatic slowing of the falling magnet naturally prompts prediction, explanation, and evidence-based reasoning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEducator-innovated and classroom-tested:\u003c\/strong\u003e Designed by teachers to clarify the deeper relationship between electricity and magnetism—not just demonstrate it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports multiple teaching styles: \u003c\/strong\u003eWorks equally well as a quick “wow” demo, a guided investigation, or a data-supported analysis.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":31899035664457,"sku":"98-8600","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-8600FaradaysLenzsLawCompleteDemo2048x2048.jpg?v=1766070775"},{"product_id":"faradays-law-and-lenzs-law-base-demo-set","title":"Faraday's Law and Lenz's Law Base Demo Set","description":"\u003cp\u003eStudents watch with amazement as a giant neodymium magnet disappears inside a thick copper collar and nearly comes to a dead stop! It seems like magic, but the Faraday's Law and Lenz's Law Demo Set is a great tool to explain what is happening in terms of fundamental electromagnetic principles.\u003c\/p\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":31899062141001,"sku":"98-8500","price":98.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-8500Faraday_sLawandLenz_sLawBaseDemoSet2048x2048.jpg?v=1765466115"},{"product_id":"elec-transformer-coil-50-100-turns","title":"Coil 50\/100 Turns","description":"\u003cp\u003eThe 50\/100-turn coil is center-tapped so students can easily vary the configuration for investigations into the relationship between coil turns and voltage and the basics of Faraday’s Laws of Electromagnetic Induction. The coil can be wired using standard banana plugs for 50, 100, or 150 turns.\u003c\/p\u003e","brand":"Lascells Ltd.","offers":[{"title":"Default Title","offer_id":40779369775177,"sku":"98-6501","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-6501Coil50-100Turns-022048x2048.jpg?v=1785251608"},{"product_id":"elec-transformer-coil-200-250-turns","title":"Coil 200\/250 Turns","description":"\u003cp\u003eThe 200\/250-turn coil is center-tapped so students can easily vary the configuration for investigations into the relationship between coil turns and voltage and the basics of Faraday’s Laws of Electromagnetic Induction. The coil can be wired using standard banana plugs for 200, 250, or 450 turns.\u003c\/p\u003e","brand":"Lascells Ltd.","offers":[{"title":"Default Title","offer_id":40779426201673,"sku":"98-6502","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-6502Coil200-250Turns-022048x2048.jpg?v=1785251653"},{"product_id":"elec-transformer-coil-300-350-turns","title":"Coil 300\/350 Turns","description":"\u003cp\u003eThe 300\/350-turn coil is center-tapped so students can easily vary the configuration for investigations into the relationship between coil turns and voltage and the basics of Faraday’s Laws of Electromagnetic Induction. The coil can be wired using standard banana plugs for 300, 350, or 650 turns.\u003c\/p\u003e","brand":"Lascells Ltd.","offers":[{"title":"Default Title","offer_id":40779443044425,"sku":"98-6503","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-6503Coil300-350Turns-022048x2048_0ec8cc29-5a28-4642-b5ec-b8676369b60b.jpg?v=1785251620"},{"product_id":"elec-transformer-coils-400-500-turns","title":"Coil  400\/500 Turns","description":"\u003cp\u003eThe 400\/500-turn coil is center-tapped so students can easily vary the configuration for investigations into the relationship between coil turns and voltage and the basics of Faraday’s Laws of Electromagnetic Induction. The coil can be wired using standard banana plugs for 400, 500, or 900 turns.\u003c\/p\u003e","brand":"Lascells Ltd.","offers":[{"title":"Default Title","offer_id":40779444879433,"sku":"98-6504","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-6504Coil400-500Turns-022048x2048_c1dc883e-6a51-4ea0-b38a-fddf83d6084e.jpg?v=1785251666"},{"product_id":"elec-transformer-coil-550-600-turns","title":"Coil  550\/600 Turns","description":"\u003cp\u003eThe 550\/600-turn coil is center-tapped so students can easily vary the configuration for investigations into the relationship between coil turns and voltage and the basics of Faraday’s Laws of Electromagnetic Induction. The coil can be wired using standard banana plugs for 550, 600, or 1150 turns.\u003c\/p\u003e","brand":"Lascells Ltd.","offers":[{"title":"Default Title","offer_id":40779445338185,"sku":"98-6505","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-6505Coil550-600Turns-022048x2048_ffa3aa49-d3d7-4d67-8d32-3cc4b8114f9c.jpg?v=1785251681"},{"product_id":"hall-effect-magnetic-field-measurement-apparatus","title":"Hall Effect Magnetic Field Measurement Apparatus","description":"\u003ch3 dir=\"ltr\"\u003e\n\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cem\u003eMeasure magnetic field strength with precision and ease\u003c\/em\u003e\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Hall Effect Probe is a classroom sensor designed to measure magnetic field strength directly. It allows students to quantify magnetic flux density (B) in real time using the Hall effect, where voltage is proportional to the applied magnetic field.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWith a measurement range spanning from very weak fields—such as Earth’s magnetic field—to strong permanent magnets, the probe supports a wide variety of investigations. An integrated display provides direct readings in tesla, while multiple range settings allow for precise measurement across different field strengths. The probe can also output a voltage signal to external meters for more detailed analysis, making it a flexible, reliable tool for quantitative magnetism experiments.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhy Teachers Love the Hall Effect Probe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eDirect field measurement: Read magnetic flux density (B) instantly in tesla\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eWide measurement range: Suitable for both weak and strong magnetic fields\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eMultiple sensitivity settings: Select appropriate range for accurate results\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eFlexible data collection: Output to external meters for deeper analysis\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eClassroom-ready design: Durable case with angled probe for easy positioning\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Lascells Ltd.","offers":[{"title":"Default Title","offer_id":55591443955785,"sku":"96-4100","price":289.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/96-4100HallEffectProbe2048x2048.jpg?v=1774465974"},{"product_id":"c-core","title":"C-Core","description":"\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cem\u003eBuild efficient transformer setups for reliable investigations\u003c\/em\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Transformer Core (Double C-Core) is a laminated iron core designed for use in classroom transformer experiments. It provides a closed magnetic path that supports efficient magnetic flux and accurate investigation of transformer behavior.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eConstructed from cold-rolled, grain-oriented (CRGO) steel, the core minimizes energy loss and maximizes magnetic efficiency. The two precision-machined halves fit flush for optimal contact and are held securely together with a strong rubber band, making setup quick and repeatable.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhy Teachers Love the Transformer Core\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eHigh magnetic efficiency: Laminated CRGO steel reduces energy loss\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003ePrecision fit: Machined ends ensure strong magnetic coupling\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eEasy setup: Two halves assemble quickly with included band\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eDesigned for classroom use: Ideal for step-up and step-down transformer investigations\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Lascells Ltd.","offers":[{"title":"Default Title","offer_id":55591869710409,"sku":"98-6500","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-6500C-Core2048x2048.jpg?v=1774970019"},{"product_id":"bil-coil","title":"BIL Coil","description":"\u003ch3 dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cem\u003eTurn electromagnetic force into real, measurable data\u003c\/em\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe BIL Coil is a classroom apparatus designed to measure the force on a current-carrying conductor in a magnetic field. It enables direct investigation of the relationship between magnetic field strength, current, and conductor length through the equation\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eF = BIL\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eDesigned for quick setup and reliable use, the BIL Coil requires only a single ring stand for suspension within a magnetic field. Selectable tappings for one, five, or ten wire lengths make it easy to vary and amplify the force, producing measurable results even with low-resolution balances. This flexibility allows students to collect clear, repeatable data while exploring how each variable affects force.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhy Teachers Love the BIL Coil\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eClear demonstration of the motor effect: Makes force on a current-carrying wire visible and measurable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eAdjustable force output: Multiple wire-length options (1, 5, 10) increase measurable force\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSimple setup: Works with a standard ring stand and magnetic field source\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eReliable data collection: Produces consistent results across a wide range of classroom equipment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eDurable classroom design: Built for repeated student use\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Lascells Ltd.","offers":[{"title":"Default Title","offer_id":55591880556617,"sku":"96-4110","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/96-4110BILCoil2048x2048_6900a49c-7168-4acc-b6e2-1e7b4a0e5db4.jpg?v=1775164346"},{"product_id":"battery-train","title":"Electromagnetic Battery Train","description":"\u003ch3\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cem\u003eSend a battery racing through a coil, no motor required\u003c\/em\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eDrop a AAA battery into one end of a coiled length of bare copper wire, and it shoots out the other end under its own power. No switch, no motor, nothing plugged in. It looks like it shouldn't work. It does, every time.\u003c\/p\u003e\n\u003cp\u003eThat motion comes from the same force principle behind electric motors and maglev trains. Neodymium magnets attached to each end of the battery touch the coil, completing a circuit that turns each loop just ahead of the train into a temporary electromagnet, pushing it forward and pulling it in from behind. What's normally an abstract idea, force from a current-carrying wire in a magnetic field, becomes something students can watch, time, and re-run in seconds.\u003c\/p\u003e\n\u003cp\u003eThe train keeps accelerating for the full length of the coil with no external power supply, no switches, and no moving parts beyond the battery itself. Drop it in, watch it launch, hand it to the next student, run it again.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love It\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNo External Power Needed\u003c\/strong\u003e – Runs entirely off one AAA battery; no wall outlets, power supplies, or extra equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVisible, Repeatable Motion\u003c\/strong\u003e – Students can run the train again and again to test variables like entry direction or coil tightness.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSame Force Principle as Motors and Maglev Trains\u003c\/strong\u003e – The battery accelerates through the coil using the exact force principle that drives electric motors and maglev propulsion, giving students a hands-on link to real engineering, not just a classroom trick.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":55751233011785,"sku":"98-8410","price":34.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-8410BatteryTrain2048x2048.jpg?v=1783523473"},{"product_id":"primary-and-secondary-coil","title":"Primary and Secondary Coil","description":"\u003ch3\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cem\u003eGenerate current with nothing but a moving magnet\u003c\/em\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Induction Coil Set pairs a primary coil and a secondary coil, sized so one nests inside the other, with a cylindrical soft-iron core that slides through the middle. Move the core in or out of the coil, or switch current through the primary coil on and off, and a current appears in the secondary coil, with nothing touching it and no battery wired to it. Students read the result on a connected galvanometer.\u003c\/p\u003e\n\u003cp\u003eBoth coils use enameled copper windings for consistent, repeatable results. Because the setup is just a primary coil, a secondary coil, and a magnet, it also works as a basic transformer model. Run the same two coils that just demonstrated induction, and now they're teaching mutual induction and voltage transformation between windings.\u003c\/p\u003e\n\u003cp\u003eFits an electricity and magnetism unit covering electromagnetic induction, Lenz's law, Faraday's law, and transformer basics, from middle school through AP Physics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love It\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eDirect Demonstration of Faraday's Law\u003c\/strong\u003e – Current appears the instant the magnet moves or the circuit switches, no abstract diagram standing in for the real effect.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eDoubles as a Transformer Model\u003c\/strong\u003e – The same primary\/secondary coil pairing that shows induction also models a basic transformer, covering two topics with one setup.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eGalvanometer-Ready\u003c\/strong\u003e – Built to pair directly with a standard galvanometer for immediate, visible current readings.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":55821280346185,"sku":"98-6510","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-6510PrimaryandSecondaryCoil2048x2048.jpg?v=1784747488"},{"product_id":"c-core-and-coil-bundle","title":"C-Core and Coil Bundle","description":"\u003ch3\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cem\u003eBuild a working transformer and prove the turns ratio law yourself\u003c\/em\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe C-Core and Coils Bundle lets students build a working transformer from scratch: a laminated steel C-core plus five coils of different turn counts, each with a center tap that unlocks a second and third turn value. Pair any two coils on the core, one carrying alternating current as the primary, one picking up an induced voltage as the secondary, and students see directly how the ratio of turns between two coils sets the ratio of voltages between them. It's the same principle behind every transformer in the power grid, in a phone charger, or in a doorbell.\u003c\/p\u003e\n\u003cp\u003eThe relationship is simple: Vs\/Vp = Ns\/Np. More turns on the secondary steps voltage up, fewer steps it down.\u003c\/p\u003e\n\u003cp\u003eRequires, but does not include, a low-voltage AC power source and banana plug leads to connect the coils, meter, and power source. Never connect the primary directly to a wall outlet; use only a classroom-rated low-voltage AC source.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love It\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFive Coils, Ten Turn Values\u003c\/strong\u003e – Each coil's center tap unlocks a second and third turn count, so five coils give ten configurations for testing turns ratio against voltage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-In Activity Progression\u003c\/strong\u003e – From directly confirming Vs\/Vp = Ns\/Np, to isolating turns as a single variable, to designing a transformer that hits a target voltage, the bundle scales from a first demo to an applied design challenge.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBuild It, Then Measure It\u003c\/strong\u003e – Students don't model a transformer's behavior on paper; they wind it, power it, and check whether the actual voltage matches the predicted turns ratio.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arbor Scientific","offers":[{"title":"Default Title","offer_id":55841824604233,"sku":"98-6520","price":214.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/6207\/1369\/files\/98-6520C-Core_CoilBundle2048x2048.jpg?v=1785244276"}],"url":"https:\/\/www.arborsci.com\/collections\/electromagnetism-motors.oembed?page=2","provider":"Arbor Scientific","version":"1.0","type":"link"}