Monday, 13 July 2020

electromagnetism - EtimesB drift of a single particle in vacuum with unifiorm E and B


The force on a charged particle in electric field E and magnetic field B is given by: m˙v=q(E+v×B)

Then, the E×B drift velocity vE of a single particle of mass m and charge q in a uniform magnetic field B and a uniform electric field E is given by vE=E×B/B2
and if E and B are perpendicular, vE=E/B.



How do I understand the fact that vE1/B ?


if B0, VE, more than the velocity of light. Furthermore,it is also plausible that VE>>vth, the thermal velocity.




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