Question

an electric motor contains stationary parts and rotating parts. together, the rotating parts are called the rotor. a model of a brushed dc motor is shown below. three parts of the motor are labelled with letters. match the parts to the functions described below.

Explanation:

Since the problem about the brushed DC motor parts and their functions is not fully presented (the functions to match are missing), we can't provide a complete solution yet. However, to solve such a problem, we would typically use knowledge from Physics (a subfield of Natural Science) about DC motor components:

(if functions were provided):

1. Recall the components of a brushed DC motor: The rotor (A here, likely the armature with the coil) experiences a magnetic force in the magnetic field from the permanent magnets (N and S). The commutator (C, the split - ring) reverses the current direction in the coil every half - rotation to keep the rotor spinning. The brushes (B) make electrical contact with the commutator, allowing current to flow into the coil.
2. For each function description, we would match it to the correct component (A, B, or C) based on these principles.

Since the functions to match are not given, we can't provide a final answer. If you provide the function descriptions, we can complete the matching.

Answer:

(if functions were provided):

1. Recall the components of a brushed DC motor: The rotor (A here, likely the armature with the coil) experiences a magnetic force in the magnetic field from the permanent magnets (N and S). The commutator (C, the split - ring) reverses the current direction in the coil every half - rotation to keep the rotor spinning. The brushes (B) make electrical contact with the commutator, allowing current to flow into the coil.
2. For each function description, we would match it to the correct component (A, B, or C) based on these principles.

Since the functions to match are not given, we can't provide a final answer. If you provide the function descriptions, we can complete the matching.