A parallel plate capacitor has a uniform electric field $E$ in the space between the plates. If the distance between the plates is $d$ and area of each plate is $A,$ the energy stored in the capacitor is
AIPMT 2008,AIPMT 2011,AIPMT 2012, Medium
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Potential difference the between plates
$V=Ed$
Parallel Plate Capacitor -
$C=\frac{\varepsilon_0A}{d}$
Energy
$U=\frac{1}{2}CV^2$
$U=\frac{1}{2}\;{\varepsilon _0}{E^2}Ad$
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