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A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The stator frequency is 50 Hz . The slip of the motor
Question

A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The stator frequency is 50 Hz . The slip of the motor is

A.

2%

B.

2.5%

C.

4%

D.

5%

Correct option is C



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