Answer:
Coulomb's law formula describes the electrostatic force between two charged particles:
F = k * q1 * q2 / r^2
where F is the force, q1 and q2 are the charges of the two particles, r is the distance between them, and k is Coulomb's constant, which is approximately equal to 9 × 10^9 N⋅m^2/C^2.
The formula states that the electrostatic force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Additionally, the force is attractive if the charges are of opposite signs and repulsive if the charges are of the same sign.