PhysicsNEET 2021Capacitors: series, parallel, energy stored

Electrostatic Potential and Capacitance

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 the area of each plate is $A$ , the energy stored in the capacitor is ( $ε_{0}$ = permittivity of free space):

A. $\frac{1}{2} ε_{0} E^{2}$
B. $ε_{0} E A d$
C. $\frac{1}{2} ε_{0} E^{2} A d$ ✓
D. $\frac{E ^{2} A d}{ε _{0}}$

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

Electrostatic Potential and Capacitance

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