What does "AC" stand for in electrical terms?

In electrical terms, "AC" stands for Alternating Current. This refers to the type of electrical current that periodically reverses direction, contrasting with Direct Current (DC), which flows in a single direction. Alternating Current is commonly used for power distribution in homes and businesses because it can be transmitted over long distances with less energy loss than Direct Current.

The characteristics of AC allow for easier voltage transformation, which is essential for efficient power transmission. For instance, utilities can increase the voltage for transmission over long distances and then decrease it to safer levels for use in homes. Understanding AC is fundamental for any technician in the entertainment industry, as most lighting and sound equipment operates on alternating current.