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Cathode Ray Type Question - Electron being moved by horizontal plates

  1. Sep 24, 2008 #1
    1. The problem statement, all variables and given/known data
    An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 5710 V. It then passes between two horizontal plates 6.45 cm long and 1.24 cm apart that have a potential difference of 249 V (see figure below).


    At what angle q will the electron be traveling after it passes between the plates?



    2. Relevant equations
    Potential Difference = -Ed

    I have no idea really where I would start this other than that.


    3. The attempt at a solution

    I have been trying for about 40 minutes and I am right back where I was. I have no clue where to start.


    Many thanks
     
  2. jcsd
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