Enter the magnitude of the charge of two points and the distance between them into the calculator to determine the charge or force between them.
- Coulomb’s Law Calculator
- Electric Potential Calculator
- Capacitor Discharge Calculator
- Surface Charge Density Calculator
- Magnet Pull Force Calculator
Charge Formula
The following equation is used to calculate the charge between two points. re
F = Ke * q₁ * q₂ /r²
- F is the electrostatic force between the two objects
- q1 is the magnitude of the first charge (coulombs)
- q2 is the magnitude of the second charge (coulombs)
- r is the distance between them
- Ke is coulomb’s constant which is equal to 8.98755 * 10⁹ N * m² / C²
Electrical Charge Definition
What is an electric charge? An electric charge is a fundamental property of matter that causes a particle to experience a force when subjected to a magnetic field.
Example Problem
How to calculate charge between points?
- First, determine the magnitude of the charge on the first particle.
For this example, the charge is found to be 10 coulombs on the first particle.
- Next, determine the magnitude of the charge on the second particle.
The second particle is found to have a charge of 20 coulombs.
- Next, determine the distance between the two particles.
The distance between the particles is found to be 5 meters.
- Finally, calculate the electrostatic force.
Using the formula, the electric static force between the charged particles is found to be: 8.98755*10^9 * 10 * 20 / 5^2 = 71900400000 N.
