Describe the purpose of a Ground Fault Circuit Interrupter (GFCI).

The purpose of a Ground Fault Circuit Interrupter (GFCI) is to protect against electric shock by interrupting the circuit. GFCIs are specifically designed to detect imbalances in the electrical current flowing through a circuit. When a ground fault occurs, such as when electricity escapes to the ground through a path like a person's body, the GFCI quickly shuts off the power to prevent serious electric shocks or even fatalities. This safety device is crucial in wet areas, such as kitchens and bathrooms, where the risk of electric shock is heightened due to moisture.

While regulating voltage levels, managing electrical surges, and improving circuit efficiency may be common considerations in electrical work, GFCIs do not serve these functions. Their primary focus is on protecting human life from hazardous electrical conditions, making them an essential component of electrical safety in residential and commercial settings.