When a wire 1.5 m long carries a 24-a current in the +x direction in a uniform external magnetic field, the magnetic force exerted by the field on the wire is given by fbx = 0, fby = 3.0 n, fbz = 2.0 n. when the wire is rotated until the charge carriers travel in the +y direction, the magnetic force exerted by the field on the wire is given by fbx = -3.0 n, fby = 0, fbz = -2.0 n. part a: determine the components of the magnetic field. part b: determine the magnitude of the magnetic field.