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MHT CET202210 Aug 2022Evening ShiftPhysicsCapacitanceActual

A parallel plate air capacitor has a uniform electric field E in the space between the plates. Area of each plate is A and the distance between the plates is d . The energy stored in the capacitor is [ ₀= . permittivity of free space ]

Options

  1. A2 ₀ E A d
  2. B₀ E^2 2 A d
  3. C1 2 ₀ E^2 A d
  4. DE^2 A d 2 ₀

Correct answer

C. 1 2 ₀ E^2 A d

Step-by-step solution

The energy stored in the capacitor is U= 1 2 C V^2= 1 2 ( ₀ A d )(E d)^2

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