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

  • question_answer
    What is the coefficient of mutual inductance when the magnetic flux changes by \[2\times {{10}^{-2}}Wb\] and change in current is 0.01A                                       [BHU 1998; AIIMS 2002]

    A)            2 henry                                   

    B)            3 henry

    C)            \[\frac{1}{2}\ henry\]       

    D)            Zero

    Correct Answer: A

    Solution :

               \[\Delta \varphi =L\Delta I\] Þ \[L=\frac{\Delta \varphi }{\Delta I}=\frac{2\times {{10}^{-2}}}{0.01}=2H\]


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