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Concepts Of Physics MCQ Edition [Volume 2]PhysicsCapacitors

The capacitance of a capacitor is independent of which of the following?

Options

  1. AThe size of the plates
  2. BThe charges on the plates
  3. CThe separation between the plates
  4. DThe shape of the plates

Correct answer

B. The charges on the plates

Step-by-step solution

The capacitance of a capacitor depends only on its geometry (size, shape, and separation of the plates) and the dielectric medium between the plates. For example, the capacitance of a parallel plate capacitor is given by C = ₀ A d , where A is the area of the plates and d is the separation between them. Although capacitance is defined as C = Q V , it is a constant for a given capacitor and does not depend on the charge Q on the plates or the potential difference V across them.

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