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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Capacitance

  • question_answer
    An air capacitor of capacity \[C=10\mu F\]is connected to a constant voltage battery of\[12\,V\]. Now the space between the plates is filled with a liquid of dielectric constant 5. The charge that flows now from battery to the capacitor is [MP PMT 1997]

    A)                    \[120\mu C\]

    B)                                      \[699\mu C\]

    C)                    \[480\mu C\]

    D)            \[24\mu C\]

    Correct Answer: C

    Solution :

                       Initially charge on the capacitor \[Q=10\times 12=120\mu C\] Finally charge on the capacitor \[Q'=(5\times 10)\times 12=600\mu C\] So charge supplied by the battery later \[=Q'-Q=480\mu C\]      


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