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A parallel plate capacitor has a uniform electric field ' \( \vec{E} \) ' in the space between the plates. If the distance between the
P plates is ' \( \mathrm{d} \) ' and the area of each plate is 'A', the energy

W stored in the capacitor is:
\( (2021) \) ( \( \varepsilon_{0}= \) permittivity of free space)
(a) \( \varepsilon_{0} \mathrm{EAd} \)
(b) \( \frac{1}{2} \varepsilon_{0} \mathrm{E}^{2} \mathrm{Ad} \)
(c) \( \frac{E^{2} \mathrm{Ad}}{\varepsilon_{0}} \)
(d) \( \frac{1}{2} \varepsilon_{0} \mathrm{E}^{2} \)
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