(A) Coulomb's law (B) Surface charge density (C) Quantisation of charge (D) Electric flux
**Column II** (P) Charge/Area (Q) \(\oint \vec{E} \cdot d\vec{s}\) (R) \(q = ne\) (S) Force is inversely proportional to square of distance
Solution:
A matches with S (inverse square law), B with P (charge/area), C with R (\(q=ne\)), and D with Q (flux).
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