A parallel plate capacitor Air filled with a dielectric whose dielectric constant varies with applied voltage as $K = V$. An identical capacitor $B$ of capacitance $C_0$ with air as dielectric is connected to voltage source $V_0 = 30\,V$ and then connected to the first capacitor after disconnecting the voltage source. The charge and voltage on capacitor.

  • A

    $A$ are $25\,C_0$ and $25\,V$

  • B

    $A$ are $25\,C_0$ and $5\, V$

  • C

    $B $ are $5\,C_0$ and $5\,V$

  • D

    $B $ and $C$ both

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