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Re: superposition



Does anyone have a good example of some force which does NOT obey the
superposition principle, and a simple way of describing it? I think
that people (including myself) tend to think that superposition (i.e.
that E-fields obey the superposition principle) is obvious. For that
reason it is useful to explain how and why something might not obey
such a principle, i.e. that it is by no means obvious that all forces
should obey it.