$A$ parallel plate capacitor has a uniform electric field $\overrightarrow{E}$ 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: ($\varepsilon_{0} =$ permittivity of free space)
- A$\frac{1}{2} \varepsilon_{0} E^{2}$
- B$\varepsilon_{0} EAd$
- C$\frac{1}{2} \varepsilon_{0} E^{2} Ad$
- D$\frac{E^{2} Ad}{\varepsilon_{0}}$
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