1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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


    User Avatar

    You have to integrate: [tex]I=2\pi\int_0^R Jrdr[/tex].
    Last edited: Apr 15, 2008
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook