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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2011

  • question_answer
      The capacity of a parallel plate capacitor without any dielectric is C. If the distance between the plates is doubled and the space between the plates is filled with a substance of dielectric constant 3, the capacity of the capacitor becomes

    A) \[\frac{1}{4}C\]                                

    B) \[\frac{9}{2}C\]

    C) \[\frac{2}{3}C\]                

    D)        \[\frac{3}{2}C\]

    Correct Answer: D

    Solution :

    The capacity of capacitor\[C=\frac{{{\varepsilon }_{0}}A}{d}\] Given,\[d=2d\]and\[K=3\]                 \[C=\frac{3}{2}C\]


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