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12th Class Physics Electro Magnetic Induction Question Bank Case Based (MCQs) - Electromagnetic Induction

  • question_answer
    If a change in current of \[0\centerdot 01A\] in one coil produces a change in magnetic flux of \[2\times {{10}^{-2}}\] weber in another coil, then the mutual inductance between coils is

    A) 0

    B) \[0\centerdot 5\,H\]

    C) 2H

    D) 3H

    Correct Answer: C

    Solution :

    Here, \[{{\phi }_{B}}=2\times {{10}^{-2}}\,Wb\], \[I=0\,.\,01\,\,A\] As \[{{\phi }_{B}}=MI\] \[\therefore \]Mutual inductance between two coils is \[M=\frac{{{\phi }_{n}}}{I}=\frac{2\times {{10}^{-2}}Wb}{0\,.\,01\,A}=2H\]


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