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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 0.01 A 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) 0.5 H

    C) 2 H                              

    D) 3 H

    Correct Answer: C

    Solution :

    (c) 2 H Here,     \[{{\phi }_{B}}=2\times {{10}^{-2}}Wb,l=0.01\,A\] as         \[{{\phi }_{B}}=Ml\] \[\therefore \] Mutual inductance between two coils is             \[M=\frac{{{\phi }_{B}}}{l}=\frac{2\times {{10}^{-2}}Wb}{0.01\,A}=2\,H\]


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