Does electric field obey superposition?

[Sammy101]

Does electric field vary with distance? For example, When I fix an electron along an axis and then fix another electron let's say 5m along the x-axis from the first, the first electron has an electric field that is creating a force on the other electron. If I free the second electron to move, it will be repelled. As the second electron is further and further repelled, does the strenght of the electric field between the two electrons now decrease? (In other words, does the electric field of the fixed charge decrease as the second charge is further and further repelled from it?)

 

[cragar]

E fields obey superposition. So if you want to know the E field at any point from both electrons just find the E field for each electron using Gauss's law and then add those solutions together.