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

  • question_answer
    Two circuits have mutual inductance of 0.1 H. What average e.m.f. is induced in one circuit when the current in the other circuit changes from 0 to 20 A in 0.02 s  [Kerala PET 2002]

    A)            240 V                                       

    B)            230 V

    C)            100 V                                       

    D)            300 V

    Correct Answer: C

    Solution :

               \[e=M\frac{di}{dt}\Rightarrow e=0.1\times \frac{(20-0)}{0.02}=100V\]


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