Demonstration Electroscope with Conductor Sphere and Needle Indicator

This demonstration electroscope detects the presence and measures the magnitude of static electric charges. It features a 5.9-inch diameter conductor sphere for effective charge collection and a needle indicator that deflects in response to induced or conducted charges. The apparatus measures approximately 10.6 x 6.3 x 4.7 inches. Charge is induced or conducted through the metal plate on top, causing the electroscope needle to deflect proportionally. The large conductor sphere enhances visibility of demonstrations. Suitable for physics and chemistry classes studying electrostatic forces and charge behavior.