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MHT CET202015 Oct 2020Morning ShiftPhysicsCapacitanceActual

A parallel plate capacitor has uniform electric field 'E' in the space between the plates. If the distance between plates is 'd' and area of each plate is 'A', the energy stored in the capacitor is ( ₀= . permittivity of free space )

Options

  1. A1 2 ₀ EA d
  2. B1 2 ₀ E ² Ad
  3. C1 2 ₀ Ad E ²
  4. D1 2 ₀ E ² ~A ~d

Correct answer

B. 1 2 ₀ E ² Ad

Step-by-step solution

Total energy (= ) energy density volume (= ( 1 2 ₀ E ² )( Ad ) )

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