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Protons And Magnetism! Due Tomorrow!

  1. Feb 11, 2004 #1
    A stream of protons passes a given point in space at a rate of 10 E9 protons/second. What magnetic field do they produce 2.0 m from the beam?
    Kind of know where to start, but not exactly. the current would be
    10 E9 multiplied by 1.6 E-19 i think. and then i think i would use
    B=(permativity of free space x I)/(2pir) using 2.0 m as r, but i'm not sure. help?
     
  2. jcsd
  3. Feb 11, 2004 #2
    this is correct. go with it.
     
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