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JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Static EMI

  • question_answer
    The mutual inductance between two coils is 1.25 henry. If the current in the primary changes at the rate of 80 ampere/second, then the induced e.m.f. in the secondary is  [MP PET 1990]

    A)             12.5 V                                     

    B)            64.0 V

    C)             0.016 V                                  

    D)            100.0 V

    Correct Answer: D

    Solution :

               \[e=M\frac{di}{dt}=1.25\times 80=100\ V\]


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