Choose the right answer from the following

How can we decrease the capacitance of a parallel-plate capacitor?

  1. Increasing the stored charge in the capacitor
  2. Decreasing the stored charge in the capacitor
  3. Increasing the gap between the charged plates 
  4. Increasing the gap between the charged plates 

Answer: 4. Increasing the gap between the charged plates 

Explanation:

The capacitance of a capacitor is affected by the area of the plates, the distance between the plates, and the ability of the dielectric to support electrostatic forces. The capacitance is inversely proportional to the distance between the plates. Hence, the capacitance of a capacitor decreases when the plates are farther apart.

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