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Most Important Selected Qs for JEE AdvancedPhysicsCapacitance

Three identical plates of area A are arranged as shown. A charge +Q is given to plate (2). Then,

Options

  1. Acharge +2 Q / 3 appears on plate
  2. Bcharge -2 Q / 3 appears on plate 1
  3. Ccharge -Q / 3 appears on plate 3
  4. Dcharge on two faces of plate 2 are 2 Q / 3 and Q / 3

Correct answer

D. charge on two faces of plate 2 are 2 Q / 3 and Q / 3

Step-by-step solution

The system is equivalent to aligned & q₁ C₁ = q₂ C₂ = q₁+q₂ C₁+C₂ & q₂= C₁ Q C₁+C₂ , q₂= C₂ Q C₁+C₂ aligned

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