A charged particle moves at 2.5 × 104 m/s at an angle of 25° to a magnetic field that has a field strength of 8.1 × 10–2 T. If the magnetic force is 7.5 × 10–2 N, what is the magnitude of the charge? 3.7 × 10–5 C 4.1 × 10–5 C 8.8 × 10–5 C 1.0 × 10–4 C