This problem explores the behavior of charge on conductors. we take as an example a long conducting rod suspended by insulating strings. assume that the rod is initially electrically neutral. for convenience we will refer to the left end of the rod as end a, and the right end of the rod as end
b. in the answer options for this problem, “strongly attracted/repelled” means “attracted/repelled with a force of magnitude similar to that which would exist between two charged balls.