2) The path of protons emerging from an accelerator must be bent by 90° by a " bending magnet" so as not a barrier in teir path a distance d from their exit hole in the accelerator, Show that the field B in the ber magnet, which we assume is uniform and can extend over an area d x d, must have magnitude B 2 (2mK/e2d2)2, where m is the mass of a proton and K is its kinetic energy. d. V

2) The path of protons emerging from an accelerator must be bent by 90° by a " bending magnet" so as not a barrier in teir path a distance d from their exit hole in the accelerator, Show that the field B in the ber magnet, which we assume is uniform and can extend over an area d x d, must have magnitude B 2 (2mK/e2d2)2, where m is the mass of a proton and K is its kinetic energy. d. V