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Hertzian Dipole and finding its orientation

  1. Sep 9, 2011 #1

    If I have a magnetic field orientated in the x-direction, a dipole positioned on the z-axis how do I find which direction the dipole is orientated? Is it just as simple as using the right hand grip rule? In which case the dipole is orientated along the y-axis? Or is it more complicated such as finding the vector product?


  2. jcsd
  3. Sep 11, 2011 #2


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    Gold Member

    Draw the x,y, and z axis. Stick a dipole at z = a. Start with dipole orientated in the z direction. The magnetic field lines will be circles centered about the z axis. For the density of such lines see,


    and relate electric field strength with magnetic field strength:

    Now rotate both the dipole and the magnetic field lines with your imagination. The circles rotate about the dipole.

    Does that help?
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