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A 4-pole, 50 Hz, 3-phase induction motor has blocked rotor reactance per phase which is four times the rotor resistance per phase. The speed at which maximum torque develops is | |
A. | 1,125 rpm. [Correct Answer] |
B. | 1,500 rpm. [Wrong Answer] |
C. | 1,050 rpm. [Wrong Answer] |
D. | 1,210 rpm. [Wrong Answer] |