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> That's not a good way to think about it.
Why did you say so?
It is true that this kind of thinking does not
lead to a quantitative solution.
But it is a good simple model for qualitative reasoning.
I suppose that an electrical engineer would
be able to calculate the force between the coaxial poles of two
bar magnets separated by a gap of any length.
But I do not know how to use such information in order to
predict, for example, that the attractive F is about 0.5 N when
the air gap is 3 mm.
Is it not true that the simple model I used is better than
Even pure monopoles,
interacting with the 1/r^2 force would behave in that way.