What characteristic does an overloaded circuit typically exhibit?

An overloaded circuit typically exhibits frequent tripping of breakers or blowing of fuses due to the excessive current drawn beyond the circuit's capacity. When too many devices are connected and operating simultaneously on a single circuit, or when a device draws more current than the circuit is designed to handle, it generates heat. This heat can lead to circuit components, such as breakers or fuses, detecting the unsafe condition and automatically shutting off the power to prevent potential hazards like electrical fires or equipment damage. This safety mechanism is vital for the protection of both the electrical system and connected appliances.

The other options do not align with the reality of how overloaded circuits function. A stable performance would imply that the circuit is operating within safe parameters, which is not the case during overload. Increased safety measures refer to the preventative designs in electrical systems rather than characteristics of an overload, while reduced current flow does not occur in overload conditions; in fact, the opposite is true—current flow increases beyond safe levels.