Question

When does an electric short circuit occur?

Answer 1

Hey mate here is your answer

A common type of short circuit occurs when the positive and negative terminals of a battery are connected with a low-resistance conductor, like a wire. With a low resistance in the connection, a high current will flow, causing the delivery of a large amount of energy in a short period of time.

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Answer 2

Answer:

For the circuit elements which are rated below the applied voltage there can be a short circuit in it. Such as if the resistance in a conductor is low and this element is supplied with high voltage then there will be short circuit in the circuit.

Short circuit can also occur if the live and the neutral wire comes in contact with each other doe to the damaged insulation. Even if the paint of an appliance gets ruptured and there is any leaking of current in the system then the whole appliance circuit will be shorted.