What physical device is designed to detect an electric charge and determine its sign? How does it work?
August 25, 2020 | Education
| To detect an electric charge and determine its sign, an instrument called an electrometer is used. The electrometer consists of a cylindrical body, glazed on both sides. A rod is fixed inside the body in a plexiglass sleeve. on which an arrow is installed that can rotate around a horizontal axis. The shaft and arrow are made of metal.
