When the short circuit condition occurs, the current in the circuit

becomes zero

remains constant

increases substantially

keeps on changing randomly

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC NDA-2 – 2020

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A short circuit condition occurs when a low-resistance path is created between two points in a circuit that normally have a potential difference across them. According to Ohm’s Law (I = V/R), if the voltage (V) source maintains a constant potential difference and the resistance (R) in the circuit drops significantly (approaching zero in an ideal short circuit), the current (I) will increase substantially. In a real circuit, the current increase is limited by the internal resistance of the power source and the resistance of the wires themselves, but it still becomes much higher than the normal operating current, often leading to overheating and damage.

In a short circuit, resistance becomes very low, leading to a very high current according to Ohm’s Law (I = V/R).

Short circuits can be dangerous as they can cause wires to melt, fires, or damage to electrical equipment. Circuit breakers or fuses are designed to detect and interrupt the circuit during a short circuit condition to prevent such hazards.

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