Electrostatic interaction

  • Thread starter mather
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  • #1
mather
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hello!

which equation descripts the electrostatic interaction between two non-point (ie. that have dimensions) charged particles?

thanks!
 

Answers and Replies

  • #2
Delphi51
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That would be different for every shape! Start with the formula for point charges and integrate over all the infinitesimal charges in the shape. Spheres work out nicely; other shapes do not.
 
  • #3
mather
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Yeah, i want for spheres only, forgot to mention
 
  • #4
Delphi51
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For spheres, just use the point charge formulas - as if the entire charge was located at the center point. Make a note that you need to work that out for yourself once you take 3D calculus.
 

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