5 Questions
What type of current does a DC motor use?
Direct current (DC)
What do nearly all types of DC motors rely on to produce magnetic forces?
Currents in the coils
How can a DC motor's speed be controlled over a wide range?
Using either a variable supply voltage or by changing the strength of current in its field windings
In what type of motor can a lightweight brushed motor used for portable power tools and appliances operate?
Universal motor
What has made replacement of DC motors with AC motors possible in many applications?
The advent of power electronics
Test your knowledge about DC motors and their operation principles in this quiz.
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