NEED HELP: Two identical metal spheres A and B are connected by a metal rod. Both are initially neutral. 1.0x10^12 electrons are added to sphere A.
a) The connecting rod is removed. Afterward, what are the charge of A and the charge of B?
b) The experiment is repeated with a plastic rod instead of a metal rod connecting the spheres. After the rod is removed, what are the charge of A and the charge of B? explain.