[SOLVED] negative rod to uncharged metal ball: 1. The problem statement, all variables and given/known data If a negatively charged rod is held near an uncharged metal ball, the metal ball: 1. becomes positively charged. 2. becomes polar. 3. Effect cannot be determined. 4. becomes negatively charged. 5. is unaffected. 3. The attempt at a solution I guessed number 4, thinking that if the negative rod touched the neutral ball, the ball would gain electrons ( since its easier to gain and lose electrons - very very difficult and rare for an object to lose or gain protons ) This would make the ball negative but I was wrong... whats the catch here?