RAJASTHAN PMT Rajasthan - PMT Solved Paper-1995

  • question_answer
    In an electric motor back e.m.f. is maximum:

    A)  at the start of motor

    B)         at the stop of motor

    C)         at maximum speed of motor

    D)         same in all case

    Correct Answer: C

    Solution :

    At maximum speed of armature coil induced e.m.f. is maximum, because at maximum speed rate of change of flux is maximum.


You need to login to perform this action.
You will be redirected in 3 sec spinner