Question

A conducting sphere of radium 5cm has a charge of 31.41 ,uc calculate the surface density of charge

Answer 1

Answer:

use the formula of surface charge density ...

• sigma(surface charge density) = Q/A

where Q is charge and A is area ..

in your question . just put area of sphere as 4π(5*10^-2m)^2 i.e. [4πr^2]

and put charge as 31.41*10^-6 C ..