Technician A says on an electromagnetic field wiper motor the strength of the total magnetic field will determine the motor speed. Technician B says on an electromagnetic field wiper motor the two field coils are wound in opposite directions so their magnetic fields will oppose each other. Who is correct?

Question

Quizplus · Accepted Answer

Technician A is correct because in an electromagnetic field wiper motor, the strength of the magnetic field indeed determines the motor speed; a stronger magnetic field results in a higher speed. Technician B is also correct because having the two field coils wound in opposite directions so their magnetic fields oppose each other is a common design in these motors to control the motor's operation and speed.

Technician a Says on an Electromagnetic Field Wiper Motor the Strength