DC Motor Basics
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Questions and Answers

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?

  • 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?

  • Universal motor (correct)
  • Synchronous motor
  • Stepper motor
  • Brushless motor
  • In what applications are larger DC motors currently used?

    <p>Propulsion of electric vehicles, elevator and hoists, and in drives for steel rolling mills</p> Signup and view all the answers

    What generates an electromagnetic field in a DC motor?

    <p>A coil of wire with a current running through it</p> Signup and view all the answers

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