JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Capacitance

  • question_answer
    A parallel plate condenser with oil between the plates (dielectric constant of oil \[K=2\]) has a capacitance\[C\]. If the oil is removed, then capacitance of the capacitor becomes [CBSE PMT 1999; MH CET 2000]

    A)                    \[\sqrt{2}C\]

    B)                                      \[2C\]

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

    D)            \[\frac{C}{2}\]

    Correct Answer: D

    Solution :

               \[{{C}_{air}}=\frac{{{C}_{medium}}}{K}=\frac{C}{2}\]


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