Question

what is the main cause of short circuit​

Answer 1

If a live wire and a neutral wire come in direct contact or touch each other , short circuiting occurs

Answer 2

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➡$Causes \: Of \: Short \: Circuits:$

⏩When the positive and negative terminals of a battery are connected with a low-resistance conductor.

⏩Overloading for longer durations.

⏩Dust dirt, moisture on switchgear/ terminations.

⏩Poor maintenance.

⏩Accidental dropping of conducting items.

⏩In few cases, underrated conductors/ wires.