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Magnetic field due to nuclear spin

  1. May 5, 2010 #1
    Hi all.

    Can anyone tell me why in the equation of the magnetic field due to a nuclear's spin has radius dependence? How come?

    B=-u0 uI / 2 pi R^3

    (sorry about the typing, I dont know how to type a porper equation..)

    Thanks in advance
  2. jcsd
  3. May 6, 2010 #2


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    Last edited by a moderator: Apr 25, 2017
  4. May 7, 2010 #3
    Thanks alxm, great answer, I am now understood. Thank you
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