What will be the rotation speed of a 3-phase, 4-pole, 50 Hz synchronou – McqOptions

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1.	What will be the rotation speed of a 3-phase, 4-pole, 50 Hz synchronous motor, if the frequency, number of poles and load torque are halved?
A.	3000 RPM
B.	750 RPM
C.	6000 RPM
D.	1500 RPM
Answer» E.

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