Answer to Question #322897 in Electricity and Magnetism for Ahmed

Question

We have an isolated spherical conductor whose radius is R1 = 4 cm, and whose

potential is 9000 V referring to ground. After, it is surrounded with a concentric spherical

conducting layer, with inner radius R2 = 8 cm and exterior one R3 =10 cm, isolated and with

null total charge. Determine charges and potentials on the inner conductor, as well as the

conducting layer, for the following cases:

a. Inner conductor and conducting layer isolated.

b. If the conducting layer is connected to ground.

Answer 1

Answer

a) for spherical conducting sphere

Inside

Potential

$V=\frac{kQ}{R}$

For outside

$V=\frac{kQ}{r}$

b) for similar manner

There is same potential.