RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    In an induction coil with resistance, the induced emf will be maximum when

    A)  the switch is put on due to high resistance

    B)  the switch is put off due to high resistance

    C)  the switch is put on due to low resistance

    D)  the switch is put off due to low resistance

    Correct Answer: B

    Solution :

     Resistance becomes infinite when switch is closed, therefore current goes to zero and emf induced in a circuit, where the value is maximum.


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