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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2006

  • question_answer
    If a capacitor of capacitance\[10\mu F\]has potential difference of 100 V across its ends, the energy stored in it is:

    A)  0.05 J                                   

    B)         1 J

    C)         0.005 J                                 

    D)         0.1 J               

    Correct Answer: A

    Solution :

     Energy stored in the capacitor is                 \[U=\frac{1}{2}C{{V}^{2}}=\frac{1}{2}\mu F\times {{(100)}^{2}}J\]                     \[=0.05\,\,J\]


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