What is exactly is a "non-conducting material"? 1. The problem statement, all variables and given/known data In many Gauss's law problems, we are often presented with "consider a nonconducting sphere with radius..." I realize most of the time we aer suppose to assume it is an inductor, how are we to know it is NOT an semi-conductor? How does Gauss's Law apply to a semi-conductor? Are wires in circuits semi-conductors?