A negatively-charged rod is held near an aluminum can that rests on a dry wood table. If you momentarily touch the opposite side of the can with your finger, the can becomes

Question

Quizplus · Accepted Answer

When the negatively-charged rod is held near the aluminum can, the electrons in the can are attracted towards the rod, leaving the other side of the can with a positive charge. When you touch the opposite side of the can with your finger, the electrons from your body flow into the can and neutralize the positive charge. However, since your body also has a small positive charge, some of the electrons from the can may flow into your body, leaving the can with a net positive charge. Therefore, the can becomes positively charged.

A Negatively-Charged Rod Is Held near an Aluminum Can That