In electrical terms, what does the abbreviation "AC" stand for?

The abbreviation "AC" stands for Alternating Current, which is the correct answer. Alternating Current refers to the type of electrical current where the flow of electric charge periodically reverses direction. This is in contrast to Direct Current (DC), where the flow of electric charge is constant and unidirectional. AC is commonly used for power distribution in homes and industries because it can be easily transformed to different voltages, allowing efficient long-distance transmission of electricity. This characteristic makes it more practical for widespread use in the electrical grid compared to other forms of current.

Understanding AC is fundamental for anyone in the electrical field, as it is the standard form of electricity supplied by utility companies worldwide for residential and commercial use.