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

  • question_answer
    The self-inductance of a coil is 5 henry, a current of 1 amp change to 2 amp within 5 second through the coil. The value of induced e.m.f. will be                     [MP PET 1994;  Similar MP PET/PMT 1998; CBSE PMT 1990]

    A)            10 volt                                     

    B)            0.10 volt

    C)            1.0 volt                                   

    D)            100 volt

    Correct Answer: C

    Solution :

               \[e=-L\frac{di}{dt}\Rightarrow e=5\times \frac{1}{5}=1\ volt\]


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