The current that flows due to a short-circuit condition is termed which type of current?

• A. Fault
• B. Overload
• C. Arcing
• D. Leakage

Answer: (A)

When a short circuit happens, the path for current becomes very low in impedance, so a large amount of current flows that isn’t part of normal operation. This abnormal, high current is called fault current (also known as short-circuit current). The term “fault” captures that something has gone wrong in the circuit, creating an unsafe condition that protection devices are designed to detect and interrupt.

The other options describe different situations: overload current is excessive current within the system’s normal path, not a true short; leakage refers to small unwanted current leaking to ground through insulation; arcing describes current that jumps across a gap, which can occur during faults but is a specific phenomenon rather than the general label for the condition.