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Questions and Answers
What type of current does a DC motor use?
What type of current does a DC motor use?
- Direct current (correct)
- Static current
- Variable current
- Alternating current
How are the speed of DC motors controlled?
How are the speed of DC motors controlled?
- By changing the strength of current in its field windings (correct)
- By varying the resistance of the coils
- By adjusting the coil alignment
- By using alternating current
What type of motor can operate on both direct and alternating current?
What type of motor can operate on both direct and alternating current?
- Universal motor (correct)
- Synchronous motor
- Stepper motor
- Brushless motor
In what applications are larger DC motors currently used?
In what applications are larger DC motors currently used?
What generates an electromagnetic field in a DC motor?
What generates an electromagnetic field in a DC motor?