What is the inherent current-limiter present for a rotating armature?

The inherent current limiter present for a rotating armature is the counter-electromotive force (CEMF). When a rotating armature moves through a magnetic field, it generates a voltage that opposes the applied voltage. This phenomenon, known as CEMF, acts to limit the amount of current that can flow through the armature winding.

As the speed of the armature increases, the CEMF increases as well, which further restricts additional current from flowing into the circuit. In essence, this self-regulating feature helps in managing the current levels within the armature, preventing excessive heating and potential damage to the motor. This function is crucial for ensuring the proper operation of electric motors and similar devices.

Inductance and resistance do play roles in current regulation within electrical circuits, but neither provides the same direct limiting effect that CEMF does in the context of a rotating armature. Inductance influences the current flow in AC circuits, while resistance contributes to energy loss due to heat, but it does not actively oppose the applied voltage at the same rate or in the same manner as CEMF. Capacitance is related to energy storage in an electric field and does not serve the purpose of limiting current in a rotating