Coulomb
Coulomb
Coulomb (pronounced: /ˈkuːlɒm/ or /ˈkuːlɑːm/) is a unit of electric charge in the International System of Units (SI). It is named after the French physicist Charles-Augustin de Coulomb who is known for developing Coulomb's law.
Etymology
The term "Coulomb" was first used in the late 19th century and is derived from the last name of Charles-Augustin de Coulomb, who first described the laws of electrostatic attraction and repulsion.
Definition
One Coulomb is defined as the amount of charge transported by a constant current of one ampere in one second. It is also equivalent to the charge of approximately 6.242×10^18 electrons.
Related Terms
- Coulomb's Law: The principle 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.
- Coulomb Meter: A device used to measure the electric charge.
- Coulomb Barrier: The energy barrier due to electrostatic interaction that two nuclei need to overcome so they can get close enough to undergo a nuclear reaction.
- Coulomb Collision: An elastic collision between charged particles.
- Coulomb Force: The force of attraction or repulsion between two charged particles.
External links
- Medical encyclopedia article on Coulomb
- Wikipedia's article - Coulomb
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