In Faraday's ice pail experiment, a positive charged ball is lowered into an ice pail without contact. A charge is registered on the electroscope attached to the outer surface. Next, the ball is allowed to contact the bucket in which the electroscope still registered the same charge. But upon removing the ball, the charge has been completely neutralized. I have always thought that charging by contact would never completely neutralize a charge, only leave each object with a partial charge. How is the ice pail able to completely drain the ball's charge. I think it has something to do with charges residing on the outer surface of a conductor but I'm not completely sure.