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Short circuit is caused due to connection of earth and current wire.Because electrons start transferring from current wire to earth wire that is from high potential to zero potential and sparking occures due to electron transfering with high energy and heat is also evolved.

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Elwin Williamson

Lvl 10
2y ago
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Wiki User

11y ago

example you have a one circuit means suddenly any problem occuring in your circuit means like as high I,v occuring means your circuit will get shorted because you already desgin you circuit this amount of ratings are available you have unlimitede means suddenly get shorted

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Wiki User

8y ago

that depends on situation,

in motors or underground cable general cause is failure of insulation.

in over head line some foreign particle like of bare conductor .

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Q: What causes short circuit?
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A short circuit is a condition whereby a point or section of the circuit offer a short path for current to return to the power supply. It occurs when two or more points or sections of the circuit touches each others (but only and only if that results in drop in resistance to such an extent that it causes excessive current to flow through.


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