Electrical Engineering

What is the function of a dc motor?



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Its a motor that will do some work if you feed it some DC voltage. Reversing the dc supply voltage polarity will make it run in a reverse direction.

The electric windows in your car is a good example of a DC motor's usefulness. The window up-down switches simply reverses the + and - polarity of the 12 volt vehicle supply to the window motor to make it take the window up or take it down.