Question

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 : (ε0=permittivity of free space)

• A. $\frac{E^2Ad}{\epsilon_0}$
• B. $\frac{1}{2}\epsilon_0E^2$
• C. $\epsilon_0EAd$
• D. $\frac{1}{2}\epsilon_0E^2Ad$

Answer 1

Answer: (D)

$\frac{1}{2}\epsilon_0E^2Ad$

Answer 2

The correct answer is option (D): $\frac{1}{2}\epsilon_0E^2Ad$