Whats the principle of superposition

  • Thread starter spock9000
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Hello

I would appreciate if someone can refresh my mind with the principle of superposition..
 

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  • #3
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lol yeah wikipedia was my first website but i didnt understood that explanations i already found an easy explanations.. thanks anyway..

Superposition Principle

The Superposition Principle states that net electric field produced at any point by a system of charges is equal to the vector sum of all individual fields, produced by each charge at this point

http://physics-help.info/physicsguide/electricity/electric_field.shtml
 
  • #4
Khashishi
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The superposition principle is a property of a linear system/function/algebra. If the function f is linear, then if
[itex]A=f(a)[/itex]
[itex]B=f(b)[/itex]
then
[itex]A+B=f(a+b)[/itex]
This is the superposition principle and it works for any sort of linear or approximately linear problem. Electromagnetism and quantum mechanics are linear. More specifically, the electric field is a linear function of the charge distribution.
[itex]\textbf{E}(\vec{x})=f(\rho(\vec{x}))[/itex]
So, if you know the electric field for two charge distributions, you can easily figure out the electric field for the combined charge distribution.
 

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