Hertzian Dipole and finding its orientation

[confusedalot]

Hi,

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?

Cheers,

Paul

 

[Spinnor]

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,

http://www.google.com/imgres?q=dipo...44&tbnw=144&start=6&ndsp=6&ved=1t:429,r:4,s:6

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?