What type of current is produced by an AC generator?

An AC generator produces alternating current (AC), which is characterized by the periodic reversal of direction of the flow of electric charge. In AC generators, a coil of wire rotates within a magnetic field, inducing an electromotive force (EMF) that causes electrons to flow first in one direction and then in the opposite direction, creating a current that alternates over time.

The nature of alternating current is such that it can be represented as a sinusoidal waveform, where the voltage varies with time following a sine function. This distinguishes it from direct current (DC), where the flow of charge remains constant in one direction.

Alternating current can be utilized in various forms, such as single-phase and three-phase currents, which cater to different levels of power supply needs and applications. However, the fundamental output of an AC generator itself, regardless of how it is later configured for distribution, is AC. This is why the answer identifying the type of current produced by an AC generator is correct.