State Coulomb.s law

Explanation

Statement: The electrostatic force between two point charges is directly proportional to the product of magnitude of charges and inversely proportional to the square of the distance between them. The direction of this force is along the line joining the two charges.
Explanation: Let `q_(1) and q_2` be the magnitudes of two charges separated by a distance .r.. Let F be the force between them,
From Coulomb.s law,
`Falpha(q_(1)q_(2))/r^2`
`F = (1)/(4piepsilon_(0))(q_1q_2)/r^2`
where `epsilon_0` is the absolute permitivity of free space.