This page contains an interactive simulation that illustrates Faraday's Law of Induction.  The simulation offers a choice of a bar magnet, a pickup coil, an electromagnet, a transformer, or a generator.   Users can change the strength of the magnets, increase/decrease loops, switch from DC to AC current, and change the area of the loop.  Users have the choice to display magnetic field lines or use a meter to show the direction and magnitude of the current.   This simulation emphasizes the connection between electric and magnetic fields and forces.

This item is part of a growing collection of physics education resources developed by the Physics Education Technology project (PhET).  Each PhET resource was designed using principles from physics education research and refined based on student interviews and classroom observations.

Please note that this resource requires at least version 1.5 of Java.