Current that reverses direction on regular intervals is known as what type of current?

The type of current that reverses direction on regular intervals is known as Alternating Current (AC). This current flows in one direction for a period and then switches to flow in the opposite direction, typically in a sinusoidal waveform. This behavior is characteristic of AC, which is widely used for power distribution in homes and industries due to its efficiency in transmitting electricity over long distances.

In contrast, Direct Current (DC) flows in a single, constant direction, which does not involve any periodic reversal. Pulsating Current refers to a form of DC that varies over time but does not change direction. Bidirectional Current can be misleading as it may imply a back-and-forth flow, which is typically associated with AC, but is not a standard term used in electrical engineering. Thus, Alternating Current is the term that correctly describes this type of electricity flow with its characteristic reversal of direction.