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
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____________?
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