A 230 V, 50 Hz, 4 pole, single-phase induction motor is rotating in the clockwise (forward) direction at a speed of 1,425 rpm.

If the rotor resistance at standstill is 7.8 Ω, then the effective rotor resistance in the backward branch of the equivalent circuit will be

A. 2 Ω

B. 4 Ω

C. 78 Ω

D. 156 Ω

## Show Answer

Answer: B

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