# 5B10.30
picture
| Description | An insulation ball is allowed to roll in a circle between two conducting plates connected to a generator. When a charge jumps to the ball, it is repelled from one plate and attracted to the other. It gives the ball a torque, which causing the ball to start rolling around the dish. |
| Note |
It is better to use the pin-pong ball or the small white ball. Push the ball at edge of the plate to get it stated |
| Location | 39G |