Electrical Machines
A synchorous generator connected to an infinite bus is over excited. Considering only the reactive power from the point view of the system the machine acts as

  None of these.
 A resistor.
 A capacitor.
 an inductor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Cogging of induction motor occurs at

 high voltage and when stator and rotor poles are not equal.
 low voltage and when stator and rotor poles are equal.
 low voltage and when stator and rotor poles are not equal.
 high voltage and when stator and rotor poles are equal.

ANSWER DOWNLOAD EXAMIANS APP