Asked by Liz
what is the role of a commutator in a DC motor?
Answers
Answered by
Damon
reverses current in armature as the shaft turns so that torque is always in the same direction.
http://electronics.howstuffworks.com/motor5.htm
http://electronics.howstuffworks.com/motor5.htm
Answered by
Damon
That link is to the commutator page. Go back one page in the link to see why the current in the armature electromagnet must be reversed every half turn.
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