In electrical terminology, what does VAC stand for?

VAC stands for Voltage of Alternating Current. This term is commonly used in electrical engineering to indicate the measurement of voltage in an alternating current (AC) system. Alternating current is characterized by the periodic reversal of direction, which is typical in many power supply systems. The voltage in these systems can fluctuate over time, so specifying it as VAC helps distinguish it from direct current (DC), which has a constant voltage.

Understanding VAC is crucial for anyone working with electrical systems, as it relates to how electrical energy is distributed and consumed in our homes and industries. Magnetic fields generated by alternating current can also influence how electric devices operate, making it vital to effectively measure and manage VAC levels for safety and efficiency.