Manipal Medical Manipal Medical Solved Paper-2006

  • question_answer
    A capacitor of capacitance 6uF is charged upto 100 V. The energy stored in the capacitor is:

    A)  0.6 J           

    B)  0.06 J

    C)  0.03 J             

    D)  0.3 J

    Correct Answer: C

    Solution :

     The energy stored in the capacitor is given by \[U=\frac{1}{2}C{{V}^{2}}\] Given, \[C=6\times {{10}^{-6}}F,\text{ }V=100\text{ }V\] So,  \[U=\frac{1}{2}\times 6\times {{10}^{-6}}\times {{(100)}^{2}}\] \[=3\times {{10}^{-2}}J=0.03\text{ }J\]


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