In DC generators, what connects the rotating windings that reverses the loop connections every half cycle?

In DC generators, the component responsible for connecting the rotating windings and reversing the loop connections every half cycle is the commutator. The primary function of the commutator is to ensure that the current flowing through the external circuit maintains a consistent direction, even though the rotation of the windings causes the direction of the electric current within the loops to reverse.

As the generator rotates, the armature winding cuts through magnetic fields, creating alternating current in the coils. The commutator segments are attached to the winding and periodically switch their connections to the external circuit at just the right moments, converting the alternating current produced in the armature into direct current. This switching is essential for the operation of the DC generator, as it provides a stable and usable output.

Other components, such as transformers, diodes, and resistors, do not perform the same function as commutators in this context. Transformers are used to change voltage levels in AC circuits, diodes allow current to flow in one direction and are typically used in rectification, and resistors are used to limit current or divide voltage but do not impact the current direction in a generator setup. Thus, the commutator is pivotal in the operation of DC generators, making it the