04.31: Two very long current-carr
xl s(lga(8h5zc w s7,9kiwt gx)5u,z qying wires are shown end on in the figure below. The wire on
7k ct()z l8z,(l, gxga wq5xwussh95 ithe 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.