Magnetic field between two infinit planes.

[sleventh]

i am to find the magnetic field between two infinite charge carrying plates, both a distance (d/2) from the x-y plane. current K=kx^. what i did was found the magnetic field of each plane with an amperian loop then added the found values. I am now wondering if it would have been better to use boundary conditions or if that would even work. Thank you very much for the help.

 

[kcdodd]

Loop sounds the easiest. Though if the current the same in both plates then b should be zero between them.