A 0.20-F capacitor is desired . What area must the plates have if they are to...

Question

Question

A 0.20-F capacitor is desired . What area must the plates have if they are to be separated by a 3.2 -mm air gap ?

Answer 1

Answer #1

The capacitance C of parallel plate capacitors with area and are separated by a distance of air as follows.

Here, is the permittivity of free space.

Convert the distance between the plates into meters.

Calculate the area of the plates by using the above equation.

Substitute for, for and for.

Therefore, the area of the plates is.

Answer 2

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