Simple electrical engine theory

[klette]

I'm working on a project that has the goal to build a battery and an electrical engine.
The battery, with theory, is all done ( a simple 12V acid/lead based on 3mol H2SO4 ).

The engine it self has also been built, a fairly simple construction; two matchboxes on a rod with wires around. ( poorly displayed in the attachment ).

But the problem is that I'm having a hard time finding the theory behind the engine. The info I find around it far too advanced accordingly to my current grade.

If anyone have tips about what to look for, some urls or similar, Please give me a hand :)

[NateTG]

What do you know about electricity and magnetism? Also, shouldn't there be magnets in that picture?

[klette]

the rod is "inside" a magnet ( forgot to mention that )

I know some electricity, but my magnetism knowlegde is poor, but I can lean ;)

[LittleBrother]

Try this link:

http://micro.magnet.fsu.edu/electromag/electricity/generators/index.html

LB

[klette]

nice.

Thanks