AC Power, or alternating current power, is a type of electrical current that reverses direction periodically. Unlike direct current (DC), which flows in one direction, AC power changes its flow direction, typically at a frequency of 50 or 60 hertz, depending on the region. This characteristic makes it suitable for long-distance transmission, as it can be easily transformed to higher voltages, reducing energy loss. Most household appliances, such as refrigerators, televisions, and computers, operate on AC power. It is generated at power plants and delivered through a network of power lines to homes and businesses. The versatility and efficiency of AC power have made it the standard for electrical systems worldwide.