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Poynting vector

  1. Mar 30, 2008 #1
    can anyone help me derive the poynting vector from energy density of electromagnetic waves?
    and how we obtain average value <S>
    thanks
     
  2. jcsd
  3. Mar 31, 2008 #2

    Andy Resnick

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    The standard derivation is available in many places, such as Jackson's book. What have you tried so far?
     
  4. Mar 31, 2008 #3
    i need the way to derive poynting vector and the average value from energy density of electromagnetic waves on the internet so i can copy it on power point
    coz i don want to type them one by one on word and then copy paste
    also any site that has all those optics formulas derived on stuff like radiation
    electric dipole moment and creation of electromagnetic waves in antennas
    you see my problem is wikipedia and sites like that has everything in them.
    i didn't use to browse a lot of sites before. so i could use some help thanks
     
  5. Mar 31, 2008 #4
    btw i have books where i can read the derivations i don't need explanations i understand the concept of all this very clearly
    but as i mentioned before just finding the proper site to browse takes alot of my time
     
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