Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

modphysnoob

  • 3 years ago

E cross H= Power Curl(E cross H)=H (curl E)- E(Curl H) H ( -dB/dt ) -E( J+ dD/dt) for some reason they say J=0 , I don't get why?

  • This Question is Closed
  1. modphysnoob
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Preetha

  2. Anonymous1921
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    J depends on what material is used. In free space there are no electric charges, and hence J equals to zero.

  3. Vincent-Lyon.Fr
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    (same answer as Anonymous1921) If you use this equation with reference to an electromagnetic wave travelling in a vacuum, there is not current there, so J = 0

  4. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy