4 Questions
What is the purpose of the commutator in a DC electric motor?
To reverse the direction of the current in the armature coil
What is the role of the stator in an electric motor?
To provide a magnetic field for the rotor to interact with
What happens to the back emf (electromotive force) as the speed of a DC motor increases?
It increases
In an AC induction motor, what is the function of the rotor bars?
To provide a path for eddy currents to circulate
Test your knowledge of electric motors with this multiple choice quiz. Explore questions about the purpose of the commutator, the role of the stator, the behavior of back emf in DC motors, and the function of rotor bars in AC induction motors.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
