Examveda
Examveda

In a 3-phase, 4-pole, 50 Hz synchronous motor, the frequency, pole number and load torque all are halved. The motor speed will be

A. 3000 r.p.m.

B. 1500 r.p.m.

C. 750 r.p.m.

D. none of the above

Answer: Option B

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