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Homework Help: Derivation for Magnetic Dipole of Current Loop

  1. May 2, 2005 #1
    Hi All,

    Please show me the derivation of the vector potentiol A for the magnetic dipole.
    from equation 8.21 to 8.21a
    This page is taken from Sadikus book.

    ** i tried all day and couldnt manage to obtain it. i need the derivation step by step **


  2. jcsd
  3. May 2, 2005 #2

    Doc Al

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    Staff: Mentor

    Here you go (this page and the next): http://www.physics.gla.ac.uk/~dland/ELMAG305/em11p/sld010.htm [Broken]
    Last edited by a moderator: May 2, 2017
  4. May 2, 2005 #3
    Thanks Doc :smile:
  5. May 2, 2005 #4
  6. May 2, 2005 #5


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    It looks like the cosine law in a triangle.You should spot that triangle out from the drawing (check all slides).

    And the magnetic potential is the solution of Poisson equation for magnetostatcs.

  7. May 3, 2005 #6
    :blushing: gawd.. how could i miss that
  8. Nov 7, 2007 #7
    hi can i get the derivation(soft copy), newbie101???
  9. Nov 7, 2007 #8


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    Please note that you're asking for something in a thread that was last active on May 3rd, 2005.

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