Attraction between horizontal plates of a charged capacitor.

Attraction between horizontal plates of a charged capacitor.A circular metal plate is suspended on a flexible conductive wire spring. A second metal plate is about 10 cm beneath the top plate. Negative charge from the Van de Graaff Generator is introduced to the top plate. The charge difference between top and bottom plates causes a force, drawing the top plate downward. The top plate hits the bottom plate and discharges. Then the cycle repeats. Note: Plates can also be charged with a 5000 Volt D.C. Power Supply, or with an Electrophorus,- but Van de Graaff is better. CAPACITANCE.