What can excessive load on a circuit cause?

Excessive load on a circuit primarily results in reduced efficiency and overheating. When a circuit is subjected to a load that exceeds its design specifications, the components such as wires and devices generate more heat due to increased current flow. This excessive heat can lead to several problems, including damage to electrical components, insulation failure, and decreased overall performance of the circuit.

High temperatures can also cause the resistance in the circuit to increase further, creating a feedback loop where more energy is wasted as heat, leading to inefficiencies. Such conditions not only jeopardize the lifespan of the components but can also pose safety risks, such as electrical fires. Therefore, understanding the impact of excessive load is critical for maintaining the integrity and safety of electrical circuits.