Example, cont.
magnitude: Fmagnetic = q v B sin(qvB)
direction: right hand rule
magnitude: F = (1.6 x 10-19 Coul) * (3 x 104 m/s) * (.05 T) * sin(90o) = 2.4 x 10-16 Nt.
direction: thumb = hand x fingers
Note: although the force looks small, consider the acceleration: a = F/m =
2.4 x 10-16 Nt / 1.67 x 10-27 kg = 1.44 x 1011 m/s2.