IESL Part II Electrical Practice Questions - IESL Qualifying Examination Part II - Electrical Engineering Exam

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A 4-pole, three-phase, 50 Hz induction motor runs at a speed of 1440 RPM at full load. What is the frequency of the rotor currents under this operating condition?

1.0 Hz 2.0 Hz 3.0 Hz 50.0 Hz

Correct Answer:

2.0 Hz

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