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E-field of a molecule on a point

  • Thread starter acedeno
  • Start date
  • #1
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Homework Statement



http://postimage.org/image/cky823nof/ [Broken]

Homework Equations




E=kq/r^2

The Attempt at a Solution



I figured I would just find the electric field produced at point * by each individual charge and then add them. For example if I were to set E1 to be the top molecule the field produced by 2e would be

E1=k2e/(R^2+0.25) where r = √(R^2 + 0.5^2)

so E=k[(q1/r1^2)+(q2/r2^2)+(q3/r3^2)+(q4/r4^2)]
 
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Answers and Replies

  • #2
ehild
Homework Helper
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The electric field is vector quantity. The contributions of the different point charges have different directions. Take it into account.


ehild
 
Last edited:

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