What is colum law

Coulomb's Law describes the electrostatic force between two stationary, charged particles. It states that the magnitude of the force is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.

The formula for Coulomb's Law is:

$$F = k \frac{|q_1 q_2|}{r^2}$$

where:

• $F$ is the magnitude of the electrostatic force.
• $k$ is Coulomb's constant ($8.99 \times 10^9 \text{ N m}^2/\text{C}^2$).
• $q_1$ and $q_2$ are the magnitudes of the two point charges.
• $r$ is the distance between the centers of the two charges.

The force is attractive if the charges have opposite signs and repulsive if they have the same sign.