A parallel plate capacitor carries a charge $q$. The distance between the plates is doubled by application of a force. The work done by the force is

  • A

    Zero

  • B

    $\frac{{{q^2}}}{C}$

  • C

    $\frac{{{q^2}}}{{2C}}$

  • D

    $\frac{{{q^2}}}{{4C}}$

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