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who invented electroscope?
Jean Antoine Nollet (1700–1770) was a clergyman and physicist. In 1748, Nollet invented one of the first electrometers, the electroscope, which detected the presence of electric charge by using electrostatic attraction and repulsion.

An electroscope is an early scientific instrument used to determine if a charge is present in an object. It is usually constructed of a metal material, which enables an electric charge to spread throughout the surface of the instrument. This can be done by induction, which means to make an item have a positive or negative charge without touching it to another already charged object. Electroscopes are not capable of telling whether a charge is positive or negative; they are only able to convey information about how much of a charge is present.


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