- The force between two point charges is…
- directly proportional to the magnitude of each charge (q1, q2),
- inversely proportional to square of the separation between their centers (r),
- directed along the line connecting their centers (r).
- This relationship is known as Coulomb's law.
- As an equation it is usually written in one of two forms…
|ke =||8.99 × 109 Nm2/C2|
|…is the electrostatic constant|
|ε0 =||8.85 × 10−12 C2/Nm2|
|…is the vacuum permittivity|