What happens during a short circuit in terms of circuit performance?

During a short circuit, the current is redirected along a path of least resistance. This occurs when a conductive path is inadvertently created that bypasses the normal load in the circuit, allowing electricity to flow through an unintended route. Since this alternate path typically has much lower resistance compared to the rest of the circuit, it results in a significant increase in current flow.

This excessive current can lead to various consequences including overheating, damage to components, tripping circuit breakers, or even starting a fire in extreme cases. While the path of least resistance allows for this increased current, it does not enhance the efficiency of the circuit overall; instead, it creates dangerous conditions due to the loss of normal functionality and risks associated with overheating components.

In summary, the redirection of current along a path of least resistance is the defining feature of a short circuit, as it directly influences how the circuit behaves during the fault condition.