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Magnetic field coil

  1. Feb 7, 2009 #1
    Hi everybody. I have a question on a magnetic field of a coil with N spire . I know the magnetic fields on point P that it has a about distance form coil center and staies on the central axis of the coil. Is possibile to determinate the magnetic filed of the coil on point P that does not stay on central axis of the coil? For example the point P staies on axis that has a distance above o below from central axis of the coil.
    Sorry if i do not write a perfect english...
    Best regards
     
  2. jcsd
  3. Feb 7, 2009 #2

    clem

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    That is done in advanced textbooks.
    The simplest is to expand the magnetic scalar potential in Legendre polynomials.
    Another method leads to elliptic integrals.
     
  4. Feb 7, 2009 #3
    Hi clem. tanks for your replay..
    Can you suggest some advanced textbook where i found this topic?
     
  5. Feb 7, 2009 #4

    clem

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    "Classical Electromagnetism" by Franklin does this in Sec. 7.10.1 using Legendre polynomials.
     
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