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date: 15 August 2022

electrophorus 

Source:
A Dictionary of Electronics and Electrical Engineering
Author(s):

Andrew Butterfield,

John Szymanski

An early form of simple electrostatic charge generator. A flat dielectric plate (‘cake’) is positively charged by friction. A metal plate with an insulated handle is placed on the cake and momentarily earthed, taking with it an induced negative charge when it is removed. The process can be repeated until the original positive charge has leaked away.... ...

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