What does the abbreviation AC stand for in electricity?

The abbreviation AC stands for Alternating Current. This type of electrical current changes direction periodically, unlike direct current (DC), which flows in one constant direction. Alternating current is commonly used in power systems and household electrical outlets because it can be easily transformed to different voltage levels, making it efficient for transporting over long distances. The ability to handle such transformations is a key advantage of AC, as it reduces energy losses during transmission. This principle is fundamental in understanding how electricity is generated and distributed across power grids and is a cornerstone of electrical engineering. By recognizing that AC is Alternating Current, one can better grasp concepts related to electrical systems and their functionality.