Does coulomb’s law is valid for all distance or for only above =>10^-15m (nuclear distance)

Does coulomb’s law is valid for all distance or for only above =>10^-15m (nuclear distance)

Does coulomb’s law is valid for all distance or for only above =>10^-15m (nuclear distance)

Does coulomb’s law is valid for all distance or for only above =>10^-15m (nuclear distance)

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