This is more of a question about a concept than the actual homework problem. The homework problem gives diagrams of rods with varying charge densities, but there's one important concept I don't yet understand, and it's stopping me from moving on in the problem. My question is even more simple though... Would the electric potential (at each point P) in my two diagrams be the same? (+q)-----P-----(+q) P-----(+2q) i.e., do the positions of the charges affect the electric potential at that point or is the electric potential solely dependent on the charge and its distance from the point? I'm leaning towards the latter and that the electric potential IS the same based on the fact that its scalar and direction shouldn't matter (?) but I really have no idea. Any help would be VERY much appreciated!