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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 [Wrong Answer] |
B. | 4 Ω [Correct Answer] |
C. | 78 Ω [Wrong Answer] |
D. | 156 Ω [Wrong Answer] |