Current of 50.0 A from west. A straight horizontal copper rod carries this to the east in a region between the poles of a large electromagnet. In this region, there is a horizontal magnetic field toward the northeast with a magnitude of 1.20 T. Find the magnitude and direction of the force on a section of the rod that is 45° north of east. (b) While keeping the rod horizontal, how should it be oriented to maximize the magnitude of the force? What is the magnitude of the force?