1. The problem statement, all variables and given/known data I have uploaded a file that shows the question. 2. Relevant equations I believe the only relevant equation is: flux = Q(enclosed)/E(knot) 3. The attempt at a solution Well I have some questions first. The problem statement says that the sphere on the left has a net charge Q. I was under the assumption that all of the charge for a conducting sphere would be located on the outside of the sphere is this true? Does it matter that the sphere is made of a conducting vs insulating material? My attempt: A- No flux because no charge is enclosed. B- (Q/2)/E(knot) Now for the second sphere (the insulating material). Here I am not sure what the difference is as I said before. I know that if the question were regarding charge then I would need to deal with density. However, the question is about flux, so I guess my question is this: In an insulating material is the charge Q evenly distributed throughout the sphere? Or can I still say: D- Zero E- (Q/2)/E(knot) As for C, I am not sure what to do with C.