What happens when an electrical circuit is shorted?

When an electrical circuit is shorted, it creates a low-resistance path for electricity to flow, effectively bypassing the intended load of the circuit. This sudden surge in current raises the risk of overheating and potential damage to the electrical components involved.

In most electrical systems, this excess current is detected by a circuit protection device—such as a circuit breaker or fuse. When the current exceeds the safe threshold, the circuit breaker trips, cutting off the electrical supply to prevent overheating, fires, or damage to the wiring and connected devices. This safety mechanism is essential for protecting both the circuit and connected electronics from the dangers posed by a short circuit.

Thus, the correct answer reflects the critical function of circuit breakers in maintaining safety within electrical systems.