Question 244Electricity & Electronics - QMED

70% to pass

In DC motor construction, with regard to the individual armature coils' ends, which statement is true?

AThe coil ends are crimped together with brush pigtails.
BThe coil ends are connected to the commutator bars.
CThe coil ends are imbedded into core slots.
DThe coil ends are spliced with the field windings
AI Explanation

The correct answer is B) The coil ends are connected to the commutator bars. In a DC motor, the armature coils are wound around the armature core. The ends of these individual coils are connected to the commutator bars, which allow the current to flow in and out of the armature coils as the motor rotates. This connection to the commutator bars is a key part of the DC motor construction, as it enables the switching of current flow that produces the rotating magnetic field and torque. The other options are incorrect because: A) The brush pigtails are connected to the commutator bars, not the coil ends. C) The coils are placed in the core slots, but the coil ends are not embedded into them. D) The field windings are separate from the armature coils and are not spliced with their ends.

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