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VMMC VMMC Medical Solved Paper-2005

  • question_answer
    The capacity of a condenser is \[4\times {{10}^{-6}}\] farad and its potential is 100 volts. The energy released on discharging it fully will be:

    A) 0.04 J                    

    B)        0.02 J                    

    C) 0.025 J                  

    D)        0.05 J

    Correct Answer: B

    Solution :

    The energy released on discharging the capacitor fully, is given by \[E=\frac{1}{2}C{{V}^{2}}=\frac{1}{2}\times 4\times {{10}^{-6}}\times {{(100)}^{2}}\] \[=2\times {{10}^{-2}}=0.02\,J\]


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