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helppppppppp physics cant this concept

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Naruto123:
wat happens in a dc electric motor and ac electric motor (the difference )

 plz help

Naruto123:
pl also answer question 9 b in ppr3 in may june 2009

staceyboy3:

--- Quote from: 123456789 on December 08, 2009, 04:51:51 pm ---wat happens in a dc electric motor and ac electric motor (the difference )

 plz help

--- End quote ---

dc is direct current, means electricity moves in one direction. ac is alternating current, means electricity goes back and forth

Saladin:
I have answered this question many times.The dc current will from from only positive to the negative side. But the ac current will flow from both positive and negative.

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