An overloaded circuit occurs when too much electrical current flows through a circuit, exceeding its designed capacity. This can happen when too many devices are plugged into a single outlet or when high-wattage appliances are used simultaneously. The excess current can generate heat, potentially leading to circuit damage or even fires. To prevent overloaded circuits, it's important to understand the limits of your electrical system. Each circuit is rated for a specific amount of current, usually measured in amperes. Using fuses or circuit breakers can help protect against overloads by interrupting the flow of electricity when the current exceeds safe levels.