Leyden jar

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Leyden jar

Leyden jar , form of capacitor invented at the Univ. of Leiden in the 18th cent. It consists of a narrow-necked glass jar coated over part of its inner and outer surfaces with conductive metal foil; a conducting rod or wire passes through an insulating stopper in the neck of the jar and contacts the inner foil layer, which is separated from the outer layer by the glass wall. By modern standards, the Leyden jar is cumbersome and inefficient. It is rarely used except in laboratory demonstrations of capacitance.

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Leyden jar

The Oxford Pocket Dictionary of Current English | 2009 | © The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information) Copyright

Ley·den jar • n. an early form of capacitor consisting of a glass jar with layers of metal foil on the outside and inside.

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Leyden jar

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

Leyden jar Earliest and simplest device for storing static electricity, developed c.1745 in Leyden, Holland. The original electrical condenser (capacitor), it consists of a foil-lined glass jar partly filled with water and closed with a cork through which protrudes a brass rod wired to the foil. To charge the jar, friction is applied to the tip of the rod.

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	Subjected to the current: batteries, bodies, and the early history of electrification in the United States.(CONSUMERISM AND COMPARATIVE CONTEXTS)(Essay) Magazine article from: Journal of Social History; 6/22/2008
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	A note on the early history of electrical stimulation of the human brain. Magazine article from: The Journal of General Psychology; 1/1/1993

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