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Homework Help: Magnetic field of force?

  1. Feb 26, 2004 #1
    Hey, I am sure how to answer this question,

    How far does the magnetic field of force extend?

    Thanks.
     
  2. jcsd
  3. Feb 27, 2004 #2

    HallsofIvy

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    Science Advisor

    Forever, and ever, and ever, and ever, .......

    (F decreases as 1/r2 and that is never 0 no matter how large r is.)
     
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