The purpose of commutators in a direct current motor is to
A
reverse the direction of the current after every half rotation
B
increase the number of rotations per second
C
enable a uniform couple to act on the coil.
D
increase the efficiency of the motor.
Verified Correct Answer: A.
Physical Principles & Numerical Solution
The purpose of commutators in a direct current (DC) motor is to reverse the direction of the current after every half rotation.
Source: Myschool Past Questions Archive (Record #69433)