1. Apr 13, 2008 #1

   splac6996

   

   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 .

    

   splac6996, Apr 13, 2008
2. 
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3. Apr 15, 2008 #2

   pam

   

   You have to integrate: [tex]I=2\pi\int_0^R Jrdr[/tex].

    

   Last edited: Apr 15, 2008

   pam, Apr 15, 2008

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