MathLiveCoulomb's law
Gives the electrostatic force between two point charges, which is proportional to the product of the charges and falls off with the square of the distance between them. It is used for stationary charges in vacuum or free space.
F = \frac{1}{4 \pi \varepsilon_0} \frac{q_1 q_2}{r^2}What the symbols mean
| electrostatic force between the charges, in newtons (N) | |
| vacuum permittivity, about 8.854 × 10^{-12} F/m | |
| first point charge, in coulombs (C) | |
| second point charge, in coulombs (C) | |
| distance between the two charges, in metres (m) |
About this formula
- FieldPhysics
- TopicElectrostatics
- LevelHigh school
- Also calledCoulomb force, Coulomb interaction, electric force between two charges, electrostatic force formula, inverse square law for charges, force between point charges
- SourceWikidata Q83152
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