So I think I have made progress. I have dB = (mudI) / (2piA) and I have dI as Idphi/pi. The B-Field from each dB is in the \phi directions, and as you integrate dB from 0 to \pi to get the whole B-Field the final field will point to the left because everything else will cancel out. The...
Homework Statement
Basically there is conductor shell which is in the shape of a semicircle. It extends to infinity. (Think of this as like half of a cylindrical conductor shell). The radius of this shell is A, and it carries a total current of X. The shell extends infinitely into the...