Brushes in a DC motor supply power to which component?

In a DC motor, the brushes play a crucial role by supplying electrical power to the armature. The armature is the rotating part of the motor, typically consisting of a coil or windings where the current flows, creating a magnetic field. This magnetic field interacts with the stationary magnetic field generated by either permanent magnets or field coils, causing the armature to rotate and thus produce mechanical work.

The brushes maintain contact with the commutator, which is connected to the armature. The commutator's function is to reverse the direction of current in the armature windings as the motor rotates, ensuring continuous rotation in one direction. If power were supplied to the field coil instead, it would alter the magnetic field strength but not directly contribute to the armature's rotation.

The stator, another component of the motor, is stationary and serves to provide a magnetic field but doesn't receive power from the brushes directly. Understanding the roles of these parts clarifies why the armature is the correct answer, as it is the component that receives the power necessary for motion in a DC motor system.