In referring to the illustration of the elementary DC generator, what statement is true? EL-0028

Correct Answer: Option C — In a complete revolution of the armature, the current flow direction within the armature winding does reverse, whereas the current flow direction in the external load does not reverse.

Mechanical commutation uses the commutator and brushes to mechanically rectify the alternating voltage generated within the rotating armature coils. Consequently, current direction constantly reverses inside the armature windings, while the external load circuit experiences a continuous unidirectional direct current flow.