👉 According to this law , the force between two charges
(1) is directly proportional to the product of their strengths .
(2) is inversely as the square of the distance between them .
(3) is inversely proportional to the absolute permittivity of the surrounding medium .
⭐👉 Mathematical speaking
In Short: F ∝ q1q2/d2
where,
ε is absolute permittivity,
K or εr is the relative permittivity or specific inductive capacity ,
ε0 is the permittivity of free space.
K or εr is also called a dielectric constant of the medium in which the two charges are placed.
History of Coulomb’s Law
A French physicist Charles Augustin de Coulomb in 1785, coined a tangible relationship in mathematical form between two bodies that have been electrically charged. He published an equation for the force causing the bodies to attract or repel each other, which is known as Coulomb’s law or Coulomb’s inverse-square law.
