tanooj

oh ok makes sense... the charges are trying to get as far away as possible from the other charges. sorry about the double post. i put it in physics first, but then i thought it would more likely be seen in homework help. thanks!

This is a doubt that's been irritating me for some time. I've got different answers from teachers and students whenever I've asked. I have two hollow charged conducting spheres, A and B. The radius of A is greater than the radius of B and it also has a greater charge than B, let's say +2q (B has +q). If I put B inside A, and connect them with a wire, will charge flow from A to B or from B to A? If charge flows from A to B, until both reach the same potential (which seems right to me), that goes against the thing that says a conductor should have all of its charge on the outer surface. If charge flows from B to A (because all the charge on a conductor should be on the outer surface), then that means its flowing from lower to higher potential, which seems counter-intuitive. Which one is correct? I've got a board exam tomorrow (think A levels) so it would be great if someone helped me out soon.