Electric Circuits
The frequency of EMF generated by a generator depends upon its

 speed.
 nature of supply.
 number of poles.
 both speed and number of poles.

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Electric Circuits
What is referred as the average value in AC opearation?

 Average of all values of the phase sequences.
 Average of all values of the (+)ve and (-)ve half.
  Average of all values of an alternating quantity over a complete cycle.
 Average of all values of an alternating quantity.

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