alternating current

**alternating current**

Alternating current (AC) is an electric current that periodically reverses direction, in contrast to direct current (DC), which flows only in one direction. AC is the form of electrical power commonly delivered to homes, businesses, and industries, allowing efficient transmission over long distances. This tag covers topics related to the principles, applications, and technologies involving alternating current, including its generation, distribution, and usage in various electronic devices and systems.