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At the time of short-circuit the current in the circuit,

June 1, 2025 by rawan239

At the time of short-circuit the current in the circuit,

reduces substantially

does not change

increases heavily

varies continuously

This question was previously asked in

UPSC CAPF – 2011

Download PDF Attempt Online

At the time of short-circuit, the current in the circuit increases heavily.

A short circuit occurs when a low-resistance path is established between points in a circuit that are normally at different electrical potentials. According to Ohm’s Law (V = IR, or I = V/R), if the resistance (R) in a circuit decreases significantly while the voltage (V) remains relatively constant, the current (I) must increase dramatically.

This heavy increase in current during a short circuit can cause overheating, damage to wiring and components, and is a common cause of electrical fires. Protective devices like fuses and circuit breakers are designed to detect this surge in current and interrupt the circuit to prevent damage.

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