A circular loop of wire (of radius r ) carries a current I. It is inserted into a region with a magnetic field whose field lines appear to diverge from a point at a distance d below the loop, on its axis of symmetry (ie , the field makes an angle θ with the loop at all points). Determine the magnetic force on the loop

A circular loop of wire (of radius r ) carries a current I. It is inserted into a region with a magnetic field whose field lines appear to diverge from a point at a distance d below the loop, on its axis of symmetry (ie , the field makes an angle θ with the loop at all points). Determine the magnetic force on the loop