H5 Force on a Particle in a Magnetic Field Particle in a Magnetic Field 1 A. 3.5E-9 N B. 1.7E-14 N C. 19 ms^-1 Particle in a Magnetic Field 2 A. 1.9E-14 N B. 0 N Particle in a Magnetic Field 3 A. 7.7E6 ms^-1