The torque of a rotor in an induction motor under running condition is maximum__________?

Polyphase Induction Motors 05/05/2021

A. at the unit value of slip
B. at the zero value of slip
C. at the value of the slip which makes rotor reactance per phase equal to the resistance per phase
D. at the value of the slip which makes the rotor reactance half of the rotor

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