# Conducting spherical shell with point charge

1. Oct 2, 2010

### demarco

Hi, I received this question on my exam today and it stumped me...

Conducting spherical shell of inner radius 0.045m and outer radius 0.18m, which has a net charge of zero.

A charge Q of 5.5x10-5 is placed at the center, find the electric fields at point A (0.03m), point B (0.06m), and point C (0.2m).

Also find the charge qin of the inner radius and qout of the outer radius.

Relevant Equations
E= qenc/(4pi*r2*epsilon_0)

My Attempt
Ea = 5.50x10-5/(4pi*(0.03m)2*epsilon_0)

Last edited: Oct 2, 2010