Question

at what distance should the 2 plates each of surface area 0.2m*0.1m of an air capacitor be placed in order to have the same capacitance as a spherical conductor of radius 0.5m

Answer 1

Answer:0.01/π

Explanation:

U know that capacitance of spherical capacitor is 4π€R

And capacitance of normal capacitor is €A/d

Given. A=0.02 m^2.

So , €(0.02)/d= 4 π € (0.5)

There fore d= 0.01/π