Electrostatic Potential and Capacitance

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• Questions
• Summary

A parallel plate capacitor consists of two large plane parallel conducting plates separated by a small distance.

The electric field in different regions is: Outer region I (region above the plate 1),

Outer region II (region below the plate 2),

In the inner region between the plates 1 and 2, the electric fields due to the two charged plates add up, giving

For uniform electric field

The capacitance C of the parallel plate capacitor is then