a) We know that the smallest charge that can exist is 'e' . But in several instances (such as calculating potential energy of sphere of charge ) we consider 'dq' and then integrate it . How can we justify this ?
b) We know that 1/2 or 1/3 of e (charge of electron) doesnt exist . But...
1. Homework Statement
There is a Uniformly charged Non conducting Spherical shell along with a point charge external to the shell . they make up an isolated system . Find the electric field inside the shell .
2. Homework Equations
3. The Attempt at a Solution Actually using...