An electric motor works on the principle which states that when a current carrying coil is placed in a magnetic field, it experiences a force that rotates it continuously.
An armature is a component of an electric machine that generates power.
The armature of an electric machine can be found on either the rotor or the stator.
The armature can interact with the magnetic flux in an air gap, and the field element can be any stable magnets or electromagnets.
Because the armature must carry current, it is always a conductor or a conductive coil, sloping normal to both the field and the motion direction, torque otherwise force.