A spherical conducting sheel of inner redius `s_1` and outer radius `r_2` has a charge Q. (a) A charge q is placed at the centre of the shell. What is the surface charge density on the inner and outer surfaces of the shell ?

Explanation

`(a) 1. 82 xx 10 ^(2) N//C, (b) - 4.8 xx 10 ^(-9) C//m^(2), (c ) + 2.4 xx 10 ^(-9) C//m^(2)`