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AP EAMCET20228 Jul 2022Morning ShiftPhysicsCapacitanceActual

A parallel plate capacitor with air between the plates has capacitance 12 F . If the distance between the plates is doubled and the space between the plates filled with a substance of dielectric constant 4 , the capacitance of the capacitor will be is

Options

  1. A24 F
  2. B72 F
  3. C6 F
  4. D12 F

Correct answer

A. 24 F

Step-by-step solution

We have aligned & C = KA ₀ ~d & C K d & C ₂= C ₁ K ₂ ~K ₁ ( d ₁ ~d ₂ ) C ₂=12 4 1 1 2 =24 F aligned

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