This electric force calculator will enable you to determine the repulsive or attractive force between two static charged particles. Continue reading to get a better understanding of the Coulomb's law, the conditions of its validity and the physical interpretation of the obtained result.

This electric force calculator will enable you to determine the repulsive or attractive force between two static charged particles. Continue reading to get a better understanding of the Coulomb's law, the conditions of its validity and the physical interpretation of the obtained result.
How to use Coulomb's law
Coulomb's law, otherwise known as Coulomb's inverse-square law, describes the electrostatic force acting between two charges. The force acts along the shortest line that joins the charges. It is repulsive if both charges have the same sign, and attractive if they have opposite signs.
Coulomb's law is formulated as follows:
F = Ke * q₁ * q₂ /r²
Fis the electrostatic force between charges (in Newtons),
q₁is the magnitude of the first charge (in Coulombs),
q₂is the magnitude of the second charge (in Coulombs),
ris the 