DC Motor Basics

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What type of current does a DC motor use?

Alternating current (AC)

Variable current (VC)

Direct current (DC) (correct)

Indirect current (IC)

Where are small DC motors commonly used?

Tools, toys, and appliances (correct)

Industrial machinery

Power plants

Automobile engines

What is the function of the internal mechanism in a DC motor?

To generate an electromagnetic field

To periodically change the direction of current (correct)

To increase the voltage supply

To regulate the speed of the motor

What has made replacement of DC motors with AC motors possible in many applications?

<p>The advent of power electronics</p> Signup and view all the answers

How is an electromagnetic field generated in a DC motor?

<p>A coil of wire with a current running through it generates an electromagnetic field aligned with the center of the coil</p> Signup and view all the answers

DC Motor Basics

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Questions and Answers

What type of current does a DC motor use?

Where are small DC motors commonly used?

What is the function of the internal mechanism in a DC motor?

What has made replacement of DC motors with AC motors possible in many applications?

How is an electromagnetic field generated in a DC motor?

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