Leyden jar


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Leyden jar

(lī`dən), form of capacitorcapacitor
or condenser,
device for the storage of electric charge. Simple capacitors consist of two plates made of an electrically conducting material (e.g., a metal) and separated by a nonconducting material or dielectric (e.g.
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 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.

Leyden jar

[′līd·ən ‚jär]
(electricity)
An early type of capacitor, consisting simply of metal foil sheets on the inner and outer surfaces of a glass jar.

Leyden jar

Physics an early type of capacitor consisting of a glass jar with the lower part of the inside and outside coated with tin foil
References in periodicals archive ?
In physics terminology the Leyden jar is a capacitor, storing large quantities of static electricity.
The Leyden jar's property of releasing all of its stored electrical energy in a sudden spurt no doubt inspired scientists to seek a technology that could release a sustained current.
As Volta and numerous other scientists improved its performance, the battery quickly supplanted the Leyden jar's descendants.
The announcement of the nanogate capacitor, heralds the imminent arrival of the Leyden jar's descendants into the lithium-ion big league.
It was more than 80 years since Benjamin Franklin, in 1752, had experimented with static electricity from Leyden jars and with electricity from the sky, by flying a kite over Philadelphia during a storm.
Franklin noted the manner of discharge of the Leyden jar. When the electrical charge was drawn off, it emitted a spark of light and a crackle of sound.
During a thunder-storm, did Earth and sky set up a gigantic Leyden jar, and was the lightning and thunder an equally gigantic discharge?
, filling Leyden jars, the violet corona of a ship's mast and
Behind it, four electrostatic generators use LP records to create electrical charges, then store the energy in Leyden jars. The records are carried down from the Public Library on Fifth Avenue and Forty-second Street each morning in a fur-lined case (fur and vinyl produce static electricity when rubbed together--a specialized fetish to be sure).