04.31: Two very long current-carrying wires are shown
si4n7g5fpv:icq( 8f.e nh-m ikul n;7 end on in the figure below. The wire on
-ni pg:s4c8uh eqlk7v5ni(i7n;mf. fthe left has a 4A current going into of the plane of the paper and the wire on the right has a 3A
current coming out of the paper. Disregarding the case of x → ±∞, in which region(s) could the
magnetic field from these two wires add to zero on the x-axis.