André-Marie Ampère, 1775 - 1836, was a French physicist and mathematician, who was a founder of the science of electrodynamics.

- Nationality
- Subject
- Fields
- Distinctions
- Posts
- Publications
- Laws
- Theories
- Equations
- Experiments/Discoveries

French

Physics

electromagnetism, mathematics

The S.I. base unit for electric current, ampere, is named in his honour, as is the related ammeter.

École Polytechnique, professor of mathematics

Chair in experimental physics at the collège de France, 1824

Foreign Member of the Royal Society, 1827.

*Considérations sur la théorie mathématique de jeu* 1802 (Considerations on the Mathematical Theory of Games), concerning probability.

*Mémoire sur la théorie mathématique des phénomènes électrodynamiques uniquement déduite de l’experience*, 1827 (Memoir on the Mathematical Theory of Electrodynamic Phenomena, Uniquely Deduced from Experience), which introduces the term *electrodynamics*.

Ampère's Law: the mutual action of two lengths of current-carrying wire is proportional to their lengths and the intensities of their currents.

One of the founders of classical electromagnetism

Mathematical and physical theory explaining the relationship between electricity and magnetism.

Ampère explained the phenomenon of electricity with the existence of an "electrodynamic molecule", which today is called the electron.

Ampère's Law:

$$∮_C{B}⋅dl = ∫∫_S (μ_0J + μ_0ε_0{δ}/{δt}E) ⋅ dS$$where $B$ is the magnetic field strength around a closed surface $C$, $ε_0$ is the electric constant, J is the current density ($Am^{-2}$), and $E$ the electric field strength.

Ampère extended Hans Christian Ørsted's magnetic effect from an electrical current to two parallel wires through which electric currents are travelling. The force between the two wires is the basis for the ampere unit.

Ampère made considerable contributions to the emerging field of experimental physics.

The S.I. base unit for electric current is the ampere. Ampère's wrote laws and equations describing the phenomenon of magnetism and electricity, and their interaction.

(Biographies of famous scientists no. 59)

- Werner Heisenberg
- Edward Stone
- Matthias Schleiden
- Robert Hooke
- John Maynard Keynes
- Michael Faraday
- Jagadish Bose
- Gregor Johann Mendel
- John Nash
- Paul Dirac
- Niels Bohr
- Bernhard Riemann
- André-Marie Ampère
- Stephen Hawking
- Julius von Sachs
- Robert Boyle
- Ada Lovelace
- John Sulston
- Galileo Galilei
- Charles Darwin
- Wallace Carothers
- Lisa Randall
- Albert Einstein
- Lynn Margulis

Read Biographies from:

The most recent article is:

Air Resistance and Terminal Velocity

View this item in the topic:

and many more articles in the subject:

'Universe' on ScienceLibrary.info covers astronomy, cosmology, and space exploration. Learn Science with ScienceLibrary.info.

Question: What happens to a light ray when it passes from air into a denser medium?

Go to the article about: Refraction

Website © contentwizard.ch | Designed by Andrew Bone