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Calculate earths magnetic field?

  1. Feb 14, 2007 #1
    How do I calculate earths magnetic field at a distance x from earths surface?
    Do I have have to think about earth as a dipole and use the rate at the dipole weakens?
  2. jcsd
  3. Feb 14, 2007 #2

    Meir Achuz

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    Yes. Calculate the B field of a dipole at given radius and angle from the N magnetic pole.
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