Whats the principle of superposition

[spock9000]

Hello

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

 

[SHISHKABOB]

http://en.wikipedia.org/wiki/Superposition_principle

?

 

[spock9000]

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

 

[Khashishi]

The superposition principle is a property of a linear system/function/algebra. If the function f is linear, then if
$A=f(a)$
$B=f(b)$
then
$A+B=f(a+b)$
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.
$\textbf{E}(\vec{x})=f(\rho(\vec{x}))$
So, if you know the electric field for two charge distributions, you can easily figure out the electric field for the combined charge distribution.

 

[sardar]

The principle of superposition is a fundamental concept in physics and other sciences that states that when two or more waves or other disturbances pass through the same point in space, the resulting disturbance is the algebraic sum of the individual disturbances. This means that the total effect is the sum of the effects of each individual wave or disturbance. This principle is based on the idea that waves can pass through each other without affecting one another, and their individual effects can be added together to determine the overall effect. This principle is widely used in fields such as optics, acoustics, and electromagnetism, and has been a key tool in understanding and predicting the behavior of waves and other phenomena.