Coulomb's law
Coulomb's Law
Coulomb's Law (pronounced: /kuːˈlɒmz/), also known as Coulomb's inverse-square law, is a fundamental principle in Physics that describes the interaction between electrically charged particles.
Etymology
The law is named after the French physicist Charles-Augustin de Coulomb who published it in 1785. The term "law" in this context refers to its consistent mathematical description.
Definition
Coulomb's Law states that the force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. This force is along the line joining the charges. The mathematical representation of Coulomb's Law is:
F = k * |q1*q2| / r^2
where:
- F is the magnitude of the force between the charges,
- q1 and q2 are the magnitudes of the charges,
- r is the distance between the charges,
- k is Coulomb's constant.
Related Terms
- Electric Charge: A fundamental property of matter that can be either positive or negative.
- Electric Field: A region around a charged particle or object within which a force would be exerted on other charged particles or objects.
- Electrostatics: The study of electric charges at rest.
- Force: An influence that causes an object to undergo a change in speed, direction, or shape.
- Inverse-square law: Any physical law stating that a specified physical quantity or intensity is inversely proportional to the square of the distance from the source of that physical quantity.
See Also
External links
- Medical encyclopedia article on Coulomb's law
- Wikipedia's article - Coulomb's law
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