Note that the demo has been upgraded from the picture. If help is needed for the setup, contact the Demo Room Coordinator.

• There are a few ways to use this demo. There are 2 round electrodes for the water, and 2 plate electrodes. There is also a large metal hoop that can be used to simulate grounded potential at infinity. The picture here is of the two, round electrodes at a positive potential and the metal plate at ground. When the Potassium Permanganate is added, it spreads out along the field lines that would represent 2 protons. The plates can be used to show capacitor field lines.