3.2.3 Cyclotronic motion
By=50, normal to the velocity. Two particles with the
value for the ratio q/m possess the same cyclotronic frequency.
The inner particle has m=150 u and q=10 u, and the outer particle has
u and q= 20 u.
The fact to be remarked is that the rotation
does only depend on the ratio q/m and the value of the applied
field. This is the basis of the particle accelerator known as