What is a likely consequence of a short circuit?

A short circuit occurs when electrical current flows along an unintended path, typically with little or no resistance. This abnormal flow can lead to significant increases in current, which produces excessive heat. This heat generation can cause wires to overheat, potentially damaging insulation, electronic components, or even causing fires. Therefore, understanding that a short circuit can lead to overheating and potential damage is crucial for ensuring safety in electrical systems.

The other options do not reflect the reality of a short circuit's effects. For example, it does not increase appliance lifespan; in fact, it can lead to equipment failure. It also does not stabilize electrical flow; instead, it disrupts it, creating dangerous and unstable conditions. Finally, it does not enhance electrical efficiency; the uncontrolled surge of current decreases efficiency and can lead to costly repairs. Recognizing the dangerous consequences of a short circuit is essential for anyone working with electrical systems.