Question

Explain the principle of a capacitor and derive an expression for the capacitance of a parallel plate capacitor.

Answer 1

The most widely recognized among all capacitors is parallel plate capacitor. It contains two metal plates of region A and isolated by separate d loaded with air or some other dielectric medium. The capacitance of air-filled parallel plate capacitor is given by

C= KAE0/d = KCo

The capacitance of a protected conductor has expanded altogether when an earthed conductor is set to close it.