Question re electrostatic charge

[rrosenthal]

Somewhat of a rudimentary question. Not sure it belongs in the QM forum-----2 electrons--one on left----one on right----1 cm apart. A repulsive force exists betw the two. Now a 3rd electron is brought in on left. Will this increase the repulsive force on the electron on the right----or to feel the effect of the 3rd electron, will an additional electron have to be brought in on the right----?-----R Rosenthal

 

[Simon Bridge]

Each electron feels the net field of both the other electrons.

So - yes, bringing another electron up on the left will increase the repulsive force on the RH electron.

You are also right - this is not QM.