what is an electric discharge? Under what condition does it occur?
Answers
electric discharge is the release and transmission of electricity in an applied electric field through a medium such as a gas.[1]
Applications
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The properties and effects of electric discharges are useful over a wide range of magnitudes. Tiny pulses of current are used to detect ionizing radiation in a Geiger–Müller tube. A low steady current can be used to illustrate the spectrum of gases in a gas-filled tube. A neon lamp is an example of a gas-discharge lamp, useful both for illumination and as a voltage regulator. A flashtube generates a short pulse of intense light useful for photography by sending a heavy current through a gas arc discharge. Corona discharges are used in photocopiers.
Electric discharges can convey substantial energy to the electrodes at the ends of the discharge. A spark gap is used in internal combustion engines to ignite the fuel/air mixture on every power stroke. Spark gaps are also used to switch heavy currents in a Marx generator and to protect electrical apparatus. In electric discharge machining, multiple tiny electric arcs are used to erode a conductive workpiece to a finished shape. Arc welding is used to assemble heavy steel structures, where the base metal is heated to melting by the heat of the arc. An electric arc furnace sustains arc currents of tens of thousands of amperes and is used for steelmaking and production of alloys and other products.
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an electric discharge is the release and transmisson of electricity in an applied electric field through a medium such as a gas
It occurs when:
The electric discharge is actually about the flow of electron may be called the electric charge flowing through a medium. The differential electrical potential causes the electric discharge in the medium.This electrons flows in order to find the positive charges causes the electric discharge