In an a.c. generator why does the current change every half turn?

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^^That's basically the question thanks for your help in advance ** :)

Posted Thu 12th April, 2012 @ 14:57 by homz

3 Answers

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nkt sure. Ac stands for alternating current which means the current goes back and forth .... Sorry if it isn't much help :-P

Answered Thu 12th April, 2012 @ 15:24 by Meghna
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Alternating current is a type of current which changes polarity, that's why you get the change every half turn. IT does that because if you think about how a generator works, it uses the electromagnetic field properties to turn a metal coil between two magnets to produce an electric current. Every half turn the polarity changes so that is why you get alternation in the current, eg +1 then -1. Hope that helps!

http://sub.allaboutcircuits.com/images/02001.png

Answered Thu 12th April, 2012 @ 15:38 by Bhavik
Edited by Bhavik on Thu 12th April, 2012 @ 15:39
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THANKYOUUUU!!!

Answered Sat 14th April, 2012 @ 17:04 by homz