A long wire carrying a $4\mathrm{.}5$ AA current perpendicular to the xy$-$plane intersects the x$-$axis at x$=2\mathrm{.}0$cmx$=2\mathrm{.}0$cm$.$ A second, parallel wire carrying a $2\mathrm{.}5$ AA current intersects the x$-$axis at x$=+2\mathrm{.}0$cmx$=+2\mathrm{.}0$cm$.$ At what point on the x$-$axis is the magnetic field zero if the two currents are in the same direction?