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Mr. Dubey • 52.49K Points
Coach 

Q. A 4 pole, 50Hz , 3 phase I M is running at 1425rpm on full load having rotor impedance per phase on standstill as 0.4+j2Ω. The ratio of full load torque to maximum torque is ___.

(A) 0.817
(B) 1.223
(C) 0.384
(D) 0.4705
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