Ok so I', having some problems with Gauss's law. I know what it is, but I still cant get the answers right.
A metallic sphere of diameter 2*10-2m has been given a charge of 2 nC. State Gauss's law. Use this to determine the electrical field at the surface of the sphere. What is the electrical field inside the field?
integral (E.dA)=Qenclosed/permitivity of free space
The Attempt at a Solution
the fist part is the equation written below.
However im not sure about the next part. How do I distinguish between the charge inside the spehere and the charge on the surface?