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Velocity and magnetic force

  1. Sep 18, 2005 #1

    tin llenaresas

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    why is the magnitude of velocity of a charged particle not affected by magnetic force? :bugeye:
     
    tin llenaresas, Sep 18, 2005
  2. jcsd
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  3. Sep 18, 2005 #2

    StatusX

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    The magnetic force always acts in a direction perpendicular to the velocity, sine F=q(vXB), so it only changes the direction of motion, not the speed. This also means it does no work on the particle.
     
    StatusX, Sep 18, 2005
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