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Electric Field of 2 charges on x-axis

  1. Feb 6, 2016 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations
    |E| = (Kq)/r^2

    3. The attempt at a solution
    I'm not really sure if there is a difference between part (a) and part (b)
  2. jcsd
  3. Feb 6, 2016 #2


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    Science Advisor
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    Hello NPM, :welcome:

    well, from your relevant equation I wouldn't be able to see a difference! You need something more, about the direction perhaps !

    Can you sketch the fields close to the charges in the two cases (there the 'other charge' hasn't got much influence) ?
  4. Feb 28, 2016 #3


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    Staff: Mentor

    They are very different. Why? :smile:
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