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Motor Windings

  1. Sep 10, 2009 #1
    Can the wire windings in an electric motor be ferromagnetic and still operate? Why?
     
  2. jcsd
  3. Sep 10, 2009 #2
    The motor could still operate with (formvar-enamel coated) ferromagnetic wires, but it would be a poor choice in part because it is very resistive relative to the same size copper wire. Eddy currents in the wire are lower than in copper, due to the higher resistance. The magnetic properties of a ferromagnetic wire might alter the magnetic design of the motor poles or armature, and degrade the motor performance.
     
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