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AP EAMCET2013PhysicsCapacitance

Two metal plates each of area ' A ' form a parallel plate capacitor with air in between the plates. The distance between the plates is ' d '. A metal plate of thickness d 2 and of same area A is inserted between the plates to form two capacitors of capacitances C₁ and C₂ as shown in the figure. If the effective capacitance of the two capacitors is C^ and the capacitance of the capacitor initially is C , then C^ C is

Options

  1. A4
  2. B2
  3. C6
  4. D1

Correct answer

B. 2

Step-by-step solution

We knows capacitance C= ₀ A d When plate is inserted gathered C^ = ₀ A d- d 2 = 2 ₀ A d C^ C = 2 1 gathered

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