What is the function of a GFI electrical socket?

A GFI, or Ground Fault Circuit Interrupter, electrical socket is designed primarily to prevent electrical shock. It does this by monitoring the electrical current flowing through the circuit. If it detects any imbalance—such as when current is leaking through an unintended pathway, which could occur when someone touches a live wire—the GFI socket quickly cuts off the electricity supply. This makes it an essential safety device, especially in areas where moisture is present, such as bathrooms and kitchens, where the risk of shock is higher.

The other options do not accurately reflect the primary purpose of a GFI socket. For instance, while voltage stability, energy efficiency, and power loss are important aspects of electrical systems, they are not functions associated with a GFI. The primary goal of this device is to enhance user safety by minimizing the risk of electrical shock, which is crucial in protecting individuals from potentially dangerous situations.