I know that when two unlike charges brought near, they will attract and cancel out each other.
So my question is what does cancel each other mean? Does they combine and form a neutral charge? I mean now they are neutral together so any of them should not be able to exert any force on a 3rd charge brought near them though they will be exerting attractive force on themselves, that is what canceling means.
But in reality they do exert force on the 3rd charge so what does this cancelling mean? It should have been like this: when two charges of opposite nature and equal magnitude are brought near will cancel each other out, now they can't exert any force on any 3rd charge.
The superposition of charges says a charge can exert force on 3rd charge even when it is combined (I mean put close together) with an equal and opposite charge.
Another argument I hear is that this cancelling means that any other 3rd charge will experience force only when placed very near, the so called neutral system, but that does not makes sense.