Question

what are the cases of sparking

Answer 1

Electrical power can also cause heat energy, and this excessive heat cancause the insulation around wires to melt away. ... A short circuit caused by overheated wiring can not only causean outlet to spark – it can also create the ignition source for a dangerous electrical fire.


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Answer 2

Causing Sparks and Lightning, Static Electricity. A spark is a stream of electrons jumping across an air gap, heating the air until it glows and expands. Certain conditions can causeenough static electricity buildup tocause a spark or lightning.