NEEDLE ELECTROSCOPE LARGE ,Each

Details

This extra-large apparatus is ideal for classroom demonstrations of electrostatic principles such as conduction, induction, and Coulomb repulsion. The clear front pane lifts up to allow easy application of ionizing materials. This large electroscope features a lightweight metal vane that serves as a pointer, deflecting when the electroscope plate is charged. A transparent scale is provided to measure the angle of deflection. The front glass window slides up to enable insertion of ionizing material into the chamber. This electroscope comes with two accessories: an electrophorus disc and a spherical electrode. Assembled, the electroscope measures 9.75 x 8 x 4.75 inches.