Coulomb's Law Calculator
Coulomb's Law Calculator: Coulomb's Law describes the electrostatic force between two charged objects. The law states that the force is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them. This calculator helps you compute the electrostatic force using the formula: F = k * (|q1 * q2| / r²), where k is Coulomb's constant.
Equal Charges
Result:
Calculation Steps:
How to Use the Coulomb's Law Calculator
To use the calculator, select whether the charges are equal or not. Input the charge value(s) and distance, then choose the appropriate units from the dropdowns. Click "Calculate Force" to get the result displayed in the table below. You can clear the fields at any time using the "Clear" button for a fresh start.
Coulomb's Law Formula
The formula for calculating the electrostatic force is given by F = k * (|q1 * q2| / r²), where F is the force between the charges, k is Coulomb's constant (approximately 8.99 x 10⁹ N m²/C²), q1 and q2 are the amounts of the charges, and r is the distance between them.
FAQs
What is Coulomb's Law?
Coulomb's Law describes the electrostatic interaction between electrically charged particles. It states that the force of attraction or repulsion between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
How is the electrostatic force calculated?
The electrostatic force can be calculated using Coulomb's Law formula: F = k * (|q1 * q2| / r²). Here, F is the force, k is Coulomb's constant, q1 and q2 are the magnitudes of the charges, and r is the distance separating them. The force is expressed in newtons.
What are the units of charge in Coulomb's Law?
In Coulomb's Law, charge can be expressed in various units including coulombs (C), nanocoulombs (nC), picocoulombs (pC), microcoulombs (μC), and elementary charges (e). The choice of unit depends on the scale of the charges being measured.
What does Coulomb's constant represent?
Coulomb's constant, denoted as k, is a proportionality factor in Coulomb's Law. It quantifies the strength of the electrostatic force between two point charges in a vacuum, approximately equal to 8.99 x 10⁹ N m²/C². It varies in different mediums.
Can this calculator handle negative charges?
Yes, this calculator can handle negative charges. In Coulomb's Law, the force can be attractive or repulsive depending on the signs of the charges. Negative and positive charges will attract each other, while like charges will repel. Simply input the values accordingly.
Related Calculator-