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Acceleration of an electron in a constant electric field

  1. Sep 1, 2009 #1
    1. The problem statement, all variables and given/known data
    An electron, starting from rest, is accelerated by a uniform electric field of 4 104 N/C that extends over a distance of 7 cm. Find the speed of the electron after it leaves the region of uniform electric field.


    2. Relevant equations
    F=(q1q2)/r^2
    and maybe the Work equation


    3. The attempt at a solution
    I really have no idea if i could get an idea of how to start it i may be able to think through it. I don't want an answer just a little guidance please
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Sep 1, 2009 #2

    Hootenanny

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    Staff Emeritus
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    Gold Member

    The work-energy theorem is the way to go ...
     
  4. Sep 3, 2009 #3
    Your force equation is incorrect; You are missing a constant
     
  5. Sep 3, 2009 #4

    rl.bhat

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    Homework Helper

    What is the force experienced by an electron in an electric field?
    What is the work done on the electron by the electric field?
     
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