An air-filled parallel plate capacitor has a uniform electric field $E$ in the space between the plates. If the distance between the plates is $d$ and the area of each plate is $A$,the energy stored in the capacitor is ($\epsilon_{0} =$ permittivity of free space).

  • A
    $\frac{1}{2} \epsilon_{0} E^{2} Ad$
  • B
    $E^{2} \frac{Ad}{\epsilon_{0}}$
  • C
    $\frac{1}{2} \epsilon_{0} E^{2}$
  • D
    $\epsilon_{0} E Ad$

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