Which type of electrical current is generated by a rotating armature?

The type of electrical current generated by a rotating armature is Alternating Current (AC). This occurs because as the armature spins within a magnetic field, the direction of the current reverses periodically due to the orientation of the magnetic field in relation to the rotating coils of wire. Each time the armature completes a half rotation, the flow of electricity changes direction. This process results in the production of alternating current, which is characterized by its waveform that oscillates between positive and negative values, reflecting that reversal.

While direct current (DC) flows in a single, consistent direction and would not be produced in this manner, the alternating nature of AC makes it suitable for many applications, particularly in power distribution systems. It’s also worth noting that induced current refers to the concept of current being generated due to a changing magnetic field but does not specifically describe the type generated by a rotating armature, which is indeed alternating current. Static current, on the other hand, refers to a current that is not in motion and cannot result from dynamic processes like rotation.