ωp = e B / m = 1,6e-19 x 2,08333e+10 / 1,6667 e-27 s2/m = 2,e+18 /s
= 1 / tp = 1 / 5,e-19 = 2,e+18 /s
= 6,25 x 3,2e+17 /s = 2,e+18 /s
=