BCECE Engineering BCECE Engineering Solved Paper-2014

  • question_answer
    When the self-inductance of the primary and secondary coil is doubled, then the mutual inductance of the two coils is

    A) halved

    B) doubled

    C) quadrupled

    D) reduced to one-fourth

    Correct Answer: B

    Solution :

    \[M=K\sqrt{{{L}_{1}}{{L}_{2}}}\]If self-inductance is doubled, then mutual inductance is also doubled.


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