Magnet drop generator

As a magnet moves near a coil of wire it generates a voltage, if it is moving fast enough it can produce some light.

This is probably the simplest generator that can produce a noticible amount of power, and is used in the torches you shake to power them.

There are two LEDs on each coil, one will light if the induced current is clockwise and the other if it is anti-clockwise. One will flash as the north pole move into the coil and one as the south pole does.

The exhibit goes very well with a basic induction exhibit, or our generator.