Which of the following losses, in a synchronous motor, does not vary with load?

Related Mcqs:

The synchronous motor is not inherently self-starting because_______________?

A. the force required to accelerate the rotor to the synchronous speed in an instant is absent B. the starting device to accelerate the rotor to near synchronous speed is absent C. a rotating magnetic field does not have enough poles D. the rotating magnetic field is produced by only 50 Hz frequency currents...

The maximum speed variation in a 3-phase synchronous motor is____________?

A. 10 per cent B. 6 per cent C. 4 per cent D. 2. per cent E. zero...

In a synchronous motor, the magnitude of stator back e.m.f. & depends on_______________?

A. d.c. excitation only B. speed of the motor C. load on the motor D. both the speed and rotor flux...

To limit the operating temperature an electrical machine should have proper____________?

A. voltage rating B. current rating C. power factor D. speed...

In a 3-phase synchronous motor, the negative phase sequence exists when the motor is_______________?

A. supplied with unbalanced voltage B. under-loaded C. over-loaded D. none of the above...