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Electric generator/motor

  1. Dec 1, 2007 #1
    i am making a generator/motor and need to know what the device is called that reverses the poles of a magnet and where can i get/make one
     
  2. jcsd
  3. Dec 1, 2007 #2

    Ouabache

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    Welcome to the Physics Forums!! You will find there are a lot of helpful folks here and also some interesting discussions. For homework questions you may want to reread this thread. It will describe to you our expectations of those asking questions.
     
  4. Dec 2, 2007 #3
    A commutator?
     
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