Two condensers, one of capacity $C$ and the other of capacity $\frac{C}{2}$ , are connected to a $V\, volt$ battery, as shown. The work done in charging fully both the condensers is

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  • A

    $\frac{1}{2}CV^2$

  • B

    $2CV^2$

  • C

    $\frac{1}{4}CV^2$

  • D

    $\frac{3}{4}CV^2$

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