A magnetohydrodynamic (MHD) drive works by applying a magnetic field to a fluid which is carrying an electric current. The fluid feels a magnetic force and is pumped through a chamber without any moving parts. Consider the water in an MHD drive utilizing a 28 cm diameter tube.
What is the force, in newtons, that can be exerted if 110 A current is passed across the tube that is perpendicular to a 2.15 T magnetic field?