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

A I need to understand the following E&M points

  1. Oct 20, 2016 #1
    dear all

    i need the help in understanding the following points:

    1- In E&M, what is happening (physically) at anomalous absorption?, and how is this explained by the form of permittivity (real and imaginary parts)?
    2- why did the "electric displacement" call that way?
     
  2. jcsd
  3. Oct 20, 2016 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    Welcome to PF;
    To understand something, instead of just memorizing the "correct" answer, you have to think your way through it - we cannot just tell you.
    So:

    1. what would absorption normally be when it is not anomalous? what do the real and imaginary parts of permittivity signify?
    2. when the electric displacement field is useful, what is being displaced?
    (Basically the name is an accident of history that we seem to be stuck with.)

    If you do not know the answers, try looking them up.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: I need to understand the following E&M points
  1. E or M (Replies: 2)

  2. If E=M then (Replies: 7)

Loading...