Coursebook 22.2 (9702 A Level) · Coulomb's law

22.2Coulomb's law (extension)

Syllabus section: Coulomb's law

Coulomb’s law for the force between point charges: F = kq₁q₂/r². Extension material — it goes beyond the Cambridge IGCSE 0625 core, but follows naturally from 17.3 Electric fields and is standard groundwork for AS/A Level and AP Physics.

Coulomb’s law for point charges, F = Q₁Q₂/(4πε₀r²), including resultant forces from several charges.