Final answer:
Coulomb's Law describes the electrostatic force between two stationary charges, being directly proportional to the product of their charges and inversely proportional to the square of their separation distance.
Step-by-step explanation:
Coulomb's Law states that two charges exert a force on one another that is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between their centers. This law is only applicable to stationary charges and is especially straightforward when dealing with spherical objects or those small enough to be approximated as spheres.
Coulomb's constant (k), which is 8.99 × 109 Nm2/C2 in SI units, is the constant of proportionality in Coulomb's Law, encapsulating the degree of force interaction between the charges. Notably, the electrostatic force calculated by Coulomb's Law does not depend on the mass of the objects but purely on their charge and distance. This law has been verified with great precision through modern experiments and no exceptions have been found, even at atomic scales.