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VIT Engineering VIT Engineering Solved Paper-2014

  • question_answer
    Two coils have a mutual inductance 0.55 H. The current changes in the first coil according equation \[I={{I}_{0}}\]sin wt. where, \[{{I}_{0}}=10A\] and \[\omega =100\pi \]rad/s. The maximum value of emfin the second coil is

    A) \[2\pi \]                                               

    B) \[5\pi \]

    C)  \[\pi \]                                

    D) \[4\pi \]

    Correct Answer: B

    Solution :

    \[{{E}_{3}}=1.70V\]                  \[\left( V \right)={{a}^{3}}\]                  \[\therefore \]          \[={{\left( 3.04\times {{10}^{-8}}cm \right)}^{3}}\]


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