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

  • question_answer
    The self-induced e.m.f. in a 0.1 H coil when the current in it is changing at the rate of 200 ampere/second  is                                                                                              [DPMT 2002]

    A)            \[8\times {{10}^{-4}}\,V\]      

    B)            \[8\times {{10}^{-5}}\,V\]

    C)            \[20\,V\]                                

    D)            \[125\,V\]

    Correct Answer: C

    Solution :

               \[e=L\frac{di}{dt}\Rightarrow e=0.1\times 200=20V\]


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