{"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","url":"https:\/\/www.arborsci.com\/products\/primary-and-secondary-coil","provider":"Arbor Scientific","version":"1.0","type":"link"}