What does AC stand for in electrical terms?

The term "AC" in electrical terms stands for "alternating current." This type of electric current periodically reverses direction, contrasting with direct current (DC), which flows in a single direction. Alternating current is commonly found in household power supplies and large electrical systems because it is easier to transmit over long distances and can be transformed to higher or lower voltages more efficiently.

Additionally, AC is integral to the functioning of various electrical devices and systems, including air conditioning, refrigeration, and motor drives. It allows for the use of transformers to adjust voltage levels, making it suitable for efficient power distribution. Understanding alternating current is crucial for anyone working in electrical systems, as it underlines the principles of how electricity is generated, transmitted, and utilized in modern applications.