MGIMS WARDHA MGIMS WARDHA Solved Paper-2009

  • question_answer
    A 100 mH coil carries 1 A current. Energy stored in its magnetic field is

    A)  0.1 J                                     

    B)  0.05 J

    C)  0.05 J                                   

    D)  1 J

    Correct Answer: B

    Solution :

                     Energy stored\[E=\frac{1}{2}L{{I}^{2}}\] \[=\frac{1}{2}\times 100\times {{10}^{-3}}\times {{(1)}^{2}}=0.05J\]


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