This Needle Electroscope is great for hands on experience with electrostatic principles in physics classrooms and labs.
The sheet metal walls of the electroscope are attached to a plastic base and top. Front glass window slides up to allow insertion of ionizing material in chamber. A light-weight metal vane is used as a pointer in the electroscope.
This light weight metal blade deflects when the electroscope plate is charged.
A graduated scale is provided to measure the angle of the deflection.
Fitted with 4mm socket.
Assembled, the electroscope measures 4 x 3.75 x 2.25 inches.