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Drift Speed in a Conductor

  1. Mar 7, 2010 #1
    1. The problem statement, all variables and given/known data
    t=time between each collision
    q=charge on particle
    m=mass of particle
    E=electric field

    Why is this the average velocity/drift speed in a conductor?

    2. Relevant equations

    3. The attempt at a solution

    Doesn't qEt/m = the final velocity of the particle. So isn't the average velocity qEt/(2m)?
    Is there something missing in my logic?

    Thanks for any help.
  2. jcsd
  3. Mar 8, 2010 #2
    Still not too sure about this problem. Any help would be much appreciated.
  4. Mar 9, 2010 #3
    In in introductory physics, do we just assume qEt/(2m) = qEt/(m) because the values are so small?
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