What is the difference between an AC motor and DC motor?It is not mentioned clearly in our text book

Asked by  | 11th Mar, 2008, 04:16: PM

Expert Answer:

DC motors: A simple DC motor has a coil of wire that can rotate in a magnetic field. The current in the coil is supplied via two brushes that make moving contact with a split ring. The coil lies in a steady magnetic field . The forces exerted on the current-carrying wires create a torque on the coil.

AC motors: With AC currents, we can reverse field directions without having to use brushes.

For more details visit this site: http://www.physclips.unsw.edu.au/jw/electricmotors.html



Answered by  | 8th Dec, 2017, 03:05: PM

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