A wire along the z-axis carries a current of 6.2 A in the +z direction. Find the magnitude and direction of the force exerted on a 6.2-cm long length of the wire by a uniform magnetic field with magnitude 0.37 T in the -x direction.
a) 1.04 N; -z direction
b) 0.142 N; y direction
c) 0.142 N; -y direction
d) 1.04 N; z direction