what is the Difference between displacement vector D and electric flux density???

Discussion in 'Homework Help' started by Rizu, Jan 2, 2015.

  1. Rizu

    Thread Starter New Member

    Nov 1, 2012
    11
    0
    Hi, I read in the book that
    [​IMG]
    where
    P is the polarization vector
    E is the electric field intensity
    and D is the displacement vector.
    this eqn can be transformed to D=εE


    My problem is what does this D or displacement vector mean i.e. what is its significance??
    again in free space ,the electric displacement field is equivalent to flux density (from Wikipedia). So what relationship or difference exists between D and flux density???

    thanks in advance to you all:)
     
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