Description

High impact
e l e c t r o s t a t i c
force experiment. The Pith
Ball Electroscope is a simple
instrument for demonstrating
electrostatic force. With some
simple rods of different materials
such as perspex, PVC or glass and a
piece wool or silk surface, you can
charge one of the spheres in the
electroscope. After, the spheres
will have different charges and
will repel each other.