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jcranmer
on Aug 10, 2022
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The strength of the strong force
> though only less than 1/r^2, not more!
The electric field of a wire drops off like 1/r, which is larger than 1/r^2.
dataflow
on Aug 10, 2022
[–]
A wire doesn't look like a point source from far away, unlike a dipole. Cut off a segment of that wire (so it's not infinite-length) and it won't be 1/r at large distances.
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The electric field of a wire drops off like 1/r, which is larger than 1/r^2.