electrophorus

device

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Last updated

June 26, 2026

Quick Summary

An electrophorus is a device used to generate electric charges. It consists of a disk that is first electrified by friction. Then, a metal plate is placed on top of this disk. The metal plate becomes charged through induction when it interacts with the electrified disk.1

This process results in a buildup of static electricity, which is a form of electricity caused by an imbalance of positive and negative charges within a material. This imbalance occurs when electrons move from one material to another. If the material that gains electrons is isolated or not a conductor, it retains these electrons, leading to a charge accumulation.2

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Alessandro Volta
… led him to improve the electrophorus, a device used to generate static electricity. He discovered and isolated methane gas in 1776. Three years later he was appointed to the chair of physics at the University of Pavia.
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… led him to improve the electrophorus, a device used to generate static electricity. He discovered and isolated methane gas in 1776. Three years later he was appointed to the chair of physics at the University of Pavia.
Read More