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NEET2013PhysicsCapacitanceActual

A parallel plate condenser is filled with two dielectrics as shown in figure. Area of each pate is A ~m ^2 and the separation is d metre. The dielectric constants are K₁ and K₂ respectively. Its capacitance in farad will be

Options

  1. A2 ₀ A d ( K₁+K₂ K₁ K₂ )
  2. B2 ₀ A d ( K₁ K₂ K₁+K₂ )
  3. C₀ A d ( K₁+K₂ 2 K₁ K₂ )
  4. D₀ A K₁ K₂ 2 (d₂ K₁+d₁ K₂ )

Correct answer

B. 2 ₀ A d ( K₁ K₂ K₁+K₂ )

Step-by-step solution

From the formula aligned C & = ₀ A 1 k₁ + 1 k₂ = ₀ A t ( k₁ k₂ k₁+k₂ ) & = 2 ₀ A d ( k₁ k₂ k₁+k₂ ) aligned

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