In an isolated parallel plate capacitor of capacitance $C$, the four surface have charges ${Q_1}$, ${Q_2}$, ${Q_3}$ and ${Q_4}$ as shown. The potential difference between the plates is

115-58

  • [IIT 1999]
  • A

    $\frac{{{Q_1} + {Q_2} + {Q_3} + {Q_4}}}{{2C}}$

  • B

    $\frac{{{Q_2} + {Q_3}}}{{2C}}$

  • C

    $\frac{{{Q_2} - {Q_3}}}{{2C}}$

  • D

    $\frac{{{Q_1} + {Q_4}}}{{2C}}$

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