Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Coaxial cables and displacement current

  1. Nov 10, 2012 #1
    Hi All,

    Consider a situation in which a coaxial cable have electric current i(t) = Imax * cos(w*t) flowing through its cilindrical inner cylindrical core (with radius a) and the inverse current flowing on its surface cover (with radius b).
    I would like to know if it is correct to say that, outside de cable (r > b), we will see not only zero current effects (due to obvious cancelation) but also zero displacement current effects.

    I hope my explanation could have achieved the necessary clarity.

    Best wishes,

    DaTario
     
  2. jcsd
  3. Nov 11, 2012 #2
    By "effects"in the OP I mean effects in the magnetic field B generated by the cable. In other word my question is:
    with current i varying in time, the magnetic field produced by the cable outside it is zero?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Coaxial cables and displacement current
  1. Displacement Current (Replies: 1)

  2. Displacement Current (Replies: 2)

Loading...