The main function of the commutator in a simple d.c. motor is to
A.
enable the armature to rotate freely
B.
increase the flux linking the armature windings
C.
maintain a direct current in the armature
D.
provide uniform magnetic field around the armature
E.
reverse the direction of the current in the armature.
Correct Answer: Option E
Explanation
Reverse the direction of the current in the armature: This ensures that the magnetic forces acting on the armature continue to produce torque in the same rotational direction, allowing for continuous motion.
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