Which is NOT true of alternating current (AC current)?

The statement that is not true regarding alternating current (AC current) is that it travels in one direction. In fact, alternating current is characterized by its rapid and periodic change in direction. It flows first in one direction and then reverses to flow in the opposite direction, completing a cycle. This back-and-forth movement is what differentiates AC from direct current (DC), which does flow in a single direction continuously.

Understanding AC involves recognizing that it is produced by mechanical means, such as generators, which create this oscillating flow of electric charge. The rapid and interrupted flow comes from the periodic changing of directions, which is typically expressed in terms of cycles per second or hertz (Hz). Thus, in the context of electrical engineering and practical applications, it's essential to remember that alternating current indeed travels in two directions, making this the correct answer in identifying the false statement.