The definition of the armature In electrical engineering, an armature is the component of an electric motor which carries alternating Current. The armature windings conduct AC even on DC machines, due to the commutator action (which periodically reverses Current direction) or due to electronic commutation, as in brushless DC motors. The armature can be on either the rotor (rotating part) or the stator (stationary part), depending on the type of electric machine. The armature windings ... The armature, which is usually the rotor, carries the armature winding that is connected to the commutator and brushes. The commutator switches the direction of the current in the armature winding as it rotates so that it always aligns with the magnetic field. Armature Definition: An armature is the component of electric machines that carries alternating current and interacts with a magnetic field, essential for both motors and generators. What is Armature? An armature is a key power-generating component in an electric machine, which can either be rotating or stationary, depending on the design of the machine. The armature interacts with the magnetic flux present in the air gap of the machine.