Coulomb's Law Calculator

Coulomb's law describes the magnitude of the electrostatic force between two electric charges.
The Coulomb's law formula is:

**F = K _{e} * q1 * q2 / r^{2}**

Where:

q1: Charge of object 1

q2: Charge of object 2

r: Distance between the two objects

F: Force between the two objects. A positive force implies a repulsive interaction, while a negative force implies an attractive interaction

K

What is the magnitude of the force between two protons which are 1.6E10

The charge of 1 proton is +1e (+1.602E-19 C).

F = 8.9875517873681764 * 10