What is coulombs law?

Answer 1

Coulomb's Law states that the magnitude of the electrostatic force between two point electric charges is directly proportional to the product of the magnitudes of each charge and inversely proportional to the square of the distance between the charges. A link is provided to the Wikipedia article.

Answer 2

The magnitude of the electrostatic force between two points electric charges is directly proportional to the product of the magnitude of each charge and inversely proportional to the square of the distance between their centers.This force will be repulsive or attractive depending upon whether the charges are like or unlike charges.Further , the force always acts along the line joining the centers of to charges.

According to this law ,the magnitude of the electrostatic force is given by

F is proportional to q1xq2/r2,where q1 and q2 are two point charges and "r"their distance apart in vacuum.

F=kq1xq2/r2,Where k is a constant whose magnitude depends upon the system of units employed and the nature of medium in which the charges are placed.