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

  • question_answer
    If the current 30 A flowing in the primary coil is made zero in 0.1 sec. The emf induced in the secondary coil is 1.5 volt. The mutual inductance between the coil is     [Pb PMT 2003]

    A)            0.05 H                                      

    B)            1.05 H

    C)            0.1 H                                        

    D)            0.2 H    

    Correct Answer: A

    Solution :

               \[e=M\frac{di}{dt}\Rightarrow 1.5=M\times \frac{30}{0.1}\Rightarrow M=0.05\ H\]


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