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  1. P = W * T (W = 2 * pi * f) f=freq, T = torque

    as field = 0, and as its inversely proportional to speed, speed becomes infinite.

    Hence T = P/(infinite),
    Torque becomes zero and motor comes to an eventual stop. As there is not field generated hence no Back Emf.

    NOT SURE ABOUT THE ANSWER’S Correctness…I’m good at A/C machines lost complete touch with DC…Please correct me if i’m wrong