What is a short circuit?

A short circuit is defined as an unintended path of low resistance that allows a significant amount of current to flow in an electrical circuit, often bypassing normal components. This occurrence typically happens when the wiring or connections allow current to flow where it’s not intended, which can lead to dangerous situations, such as overheating or electrical fires. In a short circuit, since the resistance is significantly reduced, the current can increase to levels that exceed the design capacity of the circuit, which can damage components and create safety hazards.

This understanding is essential for diagnosing electrical issues and implementing safety measures within electrical systems. Recognizing the characteristics of a short circuit enables technicians to take the necessary precautions, such as using circuit breakers and fuses, to prevent potential electrical failures.