According to Ohm's Law, the current (I) flowing through a circuit is directly proportional to the voltage (V) across it and inversely proportional to the resistance (R): I = V/R. During a short- circuit, the resistance of the path drops significantly, often close to zero. Assuming the voltage source remains relatively constant, a drastic decrease in resistance leads to a massive increase in the current flowing through the circuit.
At the time of short-circuit, the current in the circuit :
Asked in UPSC CDS 1 2022 · OPSC CS Prelims 2015 · Topic: Electric Current (Electrical Power and Energy, Joule heating effect)
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