brush discharge

n. A faintly visible, relatively slow crackling discharge of electricity without sparking.

brush discharge

n (General Physics) a slightly luminous electrical discharge between points of high charge density when the charge density is insufficient to cause a spark or around sharp points on a highly charged conductor because of ionization of air molecules in their vicinity

brush′ dis`charge

n. a type of corona discharge that takes place between two electrodes at atmospheric pressure, characterized by long, branched, luminous streamers of ionized particles. [1840–50]

Thesaurus

Noun

brush discharge - discharge between electrodes creating visible streamers of ionized particlesarc, electric arc, electric discharge, spark, discharge - electrical conduction through a gas in an applied electric field

Brush Discharge

brush discharge

[¦brəsh ¦dis‚chärj] (electricity) A luminous electric discharge that starts from a conductor when its potential exceeds a certain value but remains too low for the formation of an actual spark.

Brush Discharge

a form of electric discharge in gases.

Brush discharges arise when one of the electrodes is a thin, sharp point, generating a highly nonuniform electric field. The elementary processes of the brush discharge are similar to those of the spark discharge, which the brush discharge becomes when the voltage between electrodes is increased. Unlike the spark discharge, in the brush discharge the bundle of sparks (brush) diverging from the point does not reach the second electrode. This and other features make it possible to consider the brush discharge a form of corona discharge with strongly pronounced intermittent phenomena. Lowering the voltage turns a brush discharge into an ordinary corona discharge.

St Elmo's fire

A discharge of static electricity often seen when an aircraft flies through cumulus or other heavily charged clouds. The potential gradient around the aircraft and the surrounding air increases to an extent that a discharge takes place from sharp points in the form of visible light. Such a discharge is luminous and audible. Also called a corona discharge or a brush discharge.

brush discharge

brush discharge

brush discharge

brush′ dis`charge

Brush Discharge

brush discharge

Brush Discharge

St Elmo's fire

brush discharge

Words related to brush discharge

noun discharge between electrodes creating visible streamers of ionized particles

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