RAJASTHAN ­ PET Rajasthan PET Solved Paper-2011

  • question_answer
    A capacitor of capacitance 6\[\mu \]F 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 :

     We know that the stored energy in a capacitor \[U=\frac{1}{2}C{{V}^{2}}\] Putting \[C=6\mu F=6\times {{10}^{-6}}F,V=100V\] \[U=\frac{1}{2}\times 6\times {{10}^{-6}}\times 100\] \[U=0.03\text{ }J\]


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