A synchronous motor can operate at
A) lagging power factor only
B) leading power factor only
C) unity power factor only
D) lagging, leading and unity power factors
Correct Answer:
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Q15: As the load is applied to a
Q16: Synchronous motor always runs at
A)the synchronous speed
B)less
Q17: An over-excited synchronous motor takes
A)leading current
B)lagging current
C)both
Q18: The working of a synchronous motor is
Q19: The minimum armature current of the synchronous
Q20: In a synchronous motor, the magnitude of
Q21: If load (or torque) angle of a
Q22: For V-curves for a synchronous motor the
Q23: The back e.m.f. of a synchronous motor
Q25: In a synchronous motor which loss varies
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