Electric Arc
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Stevek113
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PHYSICS
Electricity and Magnetism
Electric Arc
Electric arcs transform air into a blazing plasma channel that can melt metal instantly
3 days ago
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What key factor allows an electric arc to sustain itself after initiation?
Continuous increase in voltage across the gas
Thermionic emission of electrons from the electrodes
Glow discharge maintaining the current flow
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PHYSICS
Electricity and Magnetism
Electric Arc
Electric arcs create plasma channels that glow brighter and hotter than ordinary sparks
6 days ago
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Why does an electric arc require a lower voltage to sustain compared to a glow discharge?
Because the electrodes in an arc are always cooler, reducing resistance.
Because an electric arc is just a stronger spark with no difference in electrical properties.
Because the plasma formed by the arc provides a highly conductive path that maintains current flow with less voltage.
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