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Homework Help: Nonuniform Current Density

  1. Apr 13, 2008 #1
    A long, straight conducting wire of radius R has a nonuniform current density J=J[tex]_{}0[/tex]*r/R , where J[tex]_{}0[/tex] is a constant. The wire carries total current I .Find an expression for J[tex]_{}0[/tex] in terms of I and R .
  2. jcsd
  3. Apr 15, 2008 #2


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    You have to integrate: [tex]I=2\pi\int_0^R Jrdr[/tex].
    Last edited: Apr 15, 2008
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