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What Coulomb's law tells us

What Coulomb's law tells us

Two uniformly charged spheres with centre-to-centre separation r and force arrows showing repulsion, plus an inset showing attraction for opposite charges

Coulomb's law gives the magnitude of the electrostatic force between two point charges. Uniformly charged spherical conductors behave like point charges at their centres, so the same law applies to them.

Coulomb's law (A-level only) Lesson

  1. A Level
  2. /Physics
  3. /Coulomb's law (A-level only)

Step-by-step lessons on AQA A Level Physics Coulomb's law (A-level only). Each one builds up to exam-style questions. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.

Lessons