Question 1A proton moving with a speed of 1.0 x 106ms ' through a magnetic field of 1.0T experiences a magnetic-force of magnitude 8.0 x 10-14N. The angle between the proton's velocity and the field is [Proton charge = 1.6 x 10 "C]A.90°B.60°C.45°D.30° Objective Show full explanation