What does a Ground Fault Circuit Interrupter (GFCI) do?

A Ground Fault Circuit Interrupter (GFCI) is specifically designed to enhance electrical safety by monitoring the flow of electricity. Its primary function is to detect ground faults or imbalance between the outgoing and incoming currents. When it senses a disparity, such as when electrical current is leaking through a person (which could lead to electrocution), the GFCI quickly disconnects the power supply to prevent serious injury or fatal accidents.

This safety device is commonly used in areas where water is present, such as bathrooms, kitchens, and outdoor locations, where the risk of electrical shocks is heightened. By shutting off the flow of electricity under such conditions, the GFCI serves as a crucial protective mechanism.

Options that suggest increasing electrical flow, measuring voltage levels, or regulating load distribution do not align with the primary purpose of a GFCI. The focus of a GFCI is strictly on detecting and responding to dangerous electrical situations, making the correct answer clearly central to its function.