How is light generator made?

Answer 1

This is an AC electric

generator which lights up a

tiny incandescent light bulb.

The generator is made from a

hollow-ended cardboard box

with a nail through the center.

The box has many turns of

varnished thin copper wire

wound around, with four

large magnets clamped

around the nail. When the

nail and magnets are spun

fast by hand, the little light

bulb lights up dimly.