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3 answers

If you are intelligent enough to ask such a good question, then I think you're intelligent enough to research on it as well. Try Wikipedia or go to a library!
( Ask your teachers!)

2007-02-18 04:55:38 · answer #1 · answered by Shobiz 3 · 0 1

yes, by photo electric effect ,using diodes(doped semi counductors)

2007-02-18 15:11:49 · answer #2 · answered by narayanamurthy m 1 · 0 0

Lol, try researching, "magneto", "generation", "coiled wiring"!

2007-02-18 01:28:28 · answer #3 · answered by tattie_herbert 6 · 0 0

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