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Detect variantion of magnetic moment

  1. Oct 6, 2008 #1
    hi all,

    I have to determine if a magnometer is able to detect variation of a magnetic moment. I am given the following observations:

    n = 2.7* 1021 (number of particles)
    mu = 2*10-20Am2
    detection limit = 10-19


    than I am given the variance of the magnetic moment as

    [tex]\sigma^2(m) = \frac{2}{3}\mu^2[/tex]

    The question is can the variations in the magnetic moment be detected?

    I am a little bit lost how to proceed - any hints or advise appreciated

    Thanks in advance

    Best
    J
    1. The problem statement, all variables and given/known data



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  2. jcsd
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