Cool Labs

Electric Currents and Fields
Electric Currents and Fields

Students will observe that the magnetic field created by a coil of wire is perpendicular to the plane of the coil. They will also see that the field is stronger with more current, and that the field reverses direction when...

Lab #33.7 Electric Fields: Charging Ahead
Lab #33.7 Electric Fields: Charging Ahead

PurposeIn this activity, students will observe the effects and behavior of static electricity.DiscussionScuff your feet across a rug and reach for a doorknob and zap—electric shock! The electrical charge that makes up the spark can be several thousand volts, which...