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NEET Sample Paper NEET Sample Test Paper-30

  • question_answer
    A capacitor of capacitance \[6\mu f\]is charged up to 100 volt. The energy stored in the capacitor will be:

    A)  \[0.6\]Joule          

    B)  \[0.06\]Joule

    C)  \[0.03\]Joule        

    D)  \[0.3\]Joule

    Correct Answer: C

    Solution :

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


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