In which situation would you typically use a Ground Fault Circuit Interrupter (GFCI)?

A Ground Fault Circuit Interrupter (GFCI) is specifically designed to protect against electrical shock by monitoring the flow of electricity and cutting off the power if it detects a ground fault. This is particularly important in areas where water and electricity are in close proximity, which increases the risk of shock.

In kitchen outlets, where water is frequently used (for example, near sinks), GFCIs are essential to ensure that if a person accidentally comes into contact with water while using an electrical appliance, the circuit will trip, preventing a potentially dangerous situation. This is why the kitchen is recognized as a critical location for GFCI installation.

Other options, while they may involve electricity, do not have the same high risk of water-related hazards and therefore do not typically utilize GFCIs for safety as a priority. For instance, a home theater system doesn't involve water directly, outdoor lighting setups may have some risks but are generally not as critical as areas directly adjacent to water sources, and overhead transformers are designed for utility-scale electrical distribution and are not intended for direct human interaction where a GFCI would apply.