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Larmor frequency

  1. Oct 25, 2005 #1
    Can someone please explain Larmor frequency to me? (like how the equation w=q*B/2m is derived?) I would greatly appreciate it!!
  2. jcsd
  3. Oct 25, 2005 #2


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    The Larmor frequency aka the "gyrofrequency" is the frequency with which charge particles orbit in a magnetic field. It directly from the solution of the equations of motion:

    [tex]\frac {d\vec v}{dt} = \frac {q}{m} \vec v \times \vec B[/tex]

    I don't think you meant to include the factor of 1/2.

    The term is also used to denote the rate of precession of a magnetic moment in a magnetic field such as an atomic nucleus. I gathered you meant the "gyrofrequency" from the form you displayed.
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