1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Dipoles and Radiated power

  1. Sep 6, 2012 #1
    1. The problem statement, all variables and given/known data

    We have the setup shown in the figure (see this figure). It rotates with angular velocity ω counter clockwise. ¿Power radiated by the system? (Sorry if it's not the correct translation -- Potencia radiada in spanish).

    2. Relevant equations


    3. The attempt at a solution

    The dipoles 1 and 2 can be written (module) as p=lq=√2q. Can be split in its x and y components:

    Dipole 1

    p_x = √2q cos (ωt + 45)
    p_y = √2q sin (ωt + 45)

    Dipole 2

    p_x = √2q cos (ωt - 45)
    p_y = √2q sin (ωt - 45)

    Dipole 3 (given)

    p_y = p sin (ωt + 90)

    Now, since they do not interfiere between them (orthogonal), we can write

    [itex]p^{2} = p^{2}_{x} + p^{2}_{y}[/itex]

    in the equation for P.

    Is this correct? Thanks!
    Last edited: Sep 6, 2012
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted