Demonstration Description: A sealed transparent acrylic container filled with suspended fibers fits on the overhead projector. Five special slides that are able to show different fields fit in the container on the overhead projector. A special piezoelectric pistol with an output of 5 kV is used to charge the slides. The fields that can be shown are:
1. parallel plate capacitator
2. a circle and a point
3. a pattern of two concentric circles that demonstrates electrostatic shielding
4. two like-charge points
5. two unlike-charge points
Demonstration Instructions: The new acrylic containers do not charge very well with the piezoelectric pistol. Use the Wimshurst machine.