What is an indicator of an overloaded electrical circuit?

An overloaded electrical circuit is often indicated by the frequent tripping of the circuit breaker. Breakers are designed to protect circuits from excessive current by interrupting the flow of electricity when they detect a malfunction. When a circuit is overloaded, it means that too much current is flowing through it, causing the breaker to trip frequently as a safety measure. This is a crucial protective feature that prevents overheating and potential fire hazards.

While other options might relate to electrical issues, they do not directly indicate an overloaded circuit. For example, low voltage readings on a multimeter can indicate other issues, such as poor wiring or a failing component, rather than specifically pointing to an overload. Uniquely colored wires might indicate different types of electrical installations or standards but do not provide relevant information about load capacity or circuit conditions. Lastly, if all lights are bright, it suggests that the circuit is functioning normally under its load conditions, which contradicts the idea of an overload. Therefore, frequent tripping of the breaker is the most reliable indicator of an overloaded circuit.