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AP EAMCET202421 May 2024Evening ShiftPhysicsCapacitanceActual

When a parallel plate capacitor is charged up to 95 V , its capacitance is C. If a dielectric slab of thickness 2 mm is inserted between plates and distance between the plates is increased by 1.6 mm such that the same potential difference is maintained. The dielectric constant of the material (slab) is

Options

  1. A2.4
  2. B4.5
  3. C5.0
  4. D9.0

Correct answer

C. 5.0

Step-by-step solution

When the battery is removed, aligned & Q= constant & C₁ V=C₂ V C₁=C₂ & ₀ A d = ₀ A (d+1.6)-t (1- 1 k ) & d=(d+1.6)-2 (1- 1 k ) & K=5 aligned

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