← A Level (Cambridge 9702) curriculum
Coursebook 22.3 (9702 A Level) · Coulomb's law
22.3Field strength of a point charge
Syllabus section: Electric field strength for a radial field
Use E = Q/(4πε₀r²) for the field strength due to a point charge in free space.
Also in:IBD.2
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Coulomb’s law and electric fields: printable summary9702 A Level Ch.22 · definitions, equations, diagrams, worked example, quick recallOpen sheet →Video lessons
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Practice questions – A Level (Cambridge 9702)
8 A Level questions, written for this syllabus. Get 5 right in a row to master the lesson.
🎯 Start practiceFiled under Chapter 22 · Coulomb's law