A wire along the z$-$axis carries a current of $5\mathrm{.}0$ A in the $+$z direction. Find the magnitude and direction of the force exerted on a $5\mathrm{.}0-$cm long length of the wire by a uniform magnetic field with magnitude $0\mathrm{.}50$ T in the $-$x direction.

$0\mathrm{.}125$ N; $-$y direction

$0\mathrm{.}500$ N; z direction

$0\mathrm{.}500$ N; $-$z direction

$0\mathrm{.}125$ N; y direction