1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Electromagnetic Waves

  1. Dec 10, 2005 #1
    Hi I am having trouble relating power to the electric field amplitude, I know that P=IA and E=cB, could someone please help? The problem reads:

    What electric-field amplitude is required to transmit an amount of power equal to that handled by modern transmission lines (that carry voltages and currents of 500 kV and 1000 A)? Suppose power is to be transmitted in a beam of cross-sectional area 100m^2.
     
    Last edited: Dec 10, 2005
  2. jcsd
  3. Dec 10, 2005 #2

    Astronuc

    User Avatar

    Staff: Mentor

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Electromagnetic Waves
  1. Electromagnetic waves (Replies: 9)

  2. Electromagnetic Waves (Replies: 3)

  3. Electromagnetic Waves (Replies: 9)

  4. Electromagnetic Waves (Replies: 2)

Loading...