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: Law of Conservation of Current

  1. Jun 25, 2010 #1
    1. The problem statement, all variables and given/known data

    Just wondering if a wire of varying circular cross section would have varying currents, or if the conservation law applies, and the current is the same at all points despite the varying circular cross sections?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Jun 25, 2010 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    The number of Coulombs/second passing through any cross sectional area will be the same otherwise you would have accumulation of charge somewhere. In other words, the conservation law applies.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook