Electroscope
An electroscope is a scientific instrument. It is used to detect electric charges. It can detect electric charges because of the electrostatic forces. The first electroscope was invented by William Gilbert.[1]
References
- ↑ Fleming, John Ambrose (1911). Encyclopædia Britannica. Vol. 9 (11th ed.). Cambridge University Press. p. 239. . In Chisholm, Hugh (ed.).