The force on the straight section along the ñx-axis is zero. For the half of the semicircle at
negative x the force is out of the page. For the half of the semicircle at positive x the force is into the page. The net
force on the semicircular section is zero. The force on the straight section that is perpendicular to the plane of the
figure is in the ñy-direction and has magnitude F ILB. = The total magnetic force on the conductor is , ILB in the
ñy-direction.