His mother was a devout woman, so Ampère was also initiated into the Catholic faith along with Enlightenment science.

The French Revolution ( 1787 – 99 ) that began during his youth was also influential: Ampère ’ s father was called into public service by the new revolutionary government, becoming a justice of the peace in a small town near Lyon.

Ampère also provided a physical understanding of the electromagnetic relationship, theorizing the existence of an “ electrodynamic molecule ” ( the forerunner of the idea of the electron ) that served as the component element of both electricity and magnetism.

André-Marie Ampère also contributed to its development.

Another model is the Ampère model, where all magnetization is due to the effect of microscopic, or atomic, circular bound currents, also called Ampèrian currents, throughout the material.

On the other hand, treating all charges on the same footing ( disregarding whether they are bound or free charges ), the generalized Ampère's equation, also called the Maxwell – Ampère equation, is in integral form ( see the " proof " section below ):

Gradient estimates were also used crucially in Yau's joint work with S. Y. Cheng to give a complete proof of the higher dimensional Hermann Minkowski problem and the Dirichlet problem for the real Monge – Ampère equation, and other results on the Kähler – Einstein metric of bounded pseudoconvex domains.

Furthering Ørsted ’ s experimental work, Ampère showed that two parallel wires carrying electric currents attract or repel each other, depending on whether the currents flow in the same or opposite directions, respectively-this laid the foundation of electrodynamics.

The phenomenon was further investigated by Ampère, who discovered that two parallel current-carrying wires exerted a force upon each other: two wires conducting currents in the same direction are attracted to each other, while wires containing currents in opposite directions are forced apart.

Soon after the discovery in 1820 by H. C. Ørsted that a magnetic needle is acted on by a voltaic current, André-Marie Ampère that same year was able to devise through experimentation the formula for the angular dependence of the force between two current elements .< ref >

Then in 1820, André-Marie Ampère showed that parallel wires having currents in the same direction attract one another.

André-Marie Ampère achieved the same results three years later by another method ( in his -- On the Determination of Proportions in which Bodies Combine According to the Number and the Respective Disposition of the Molecules by Which Their Integral Particles Are Made ), but the same indifference was shown to his theory as well.

The most important of these was the principle that came to be called Ampère ’ s law, which states that the mutual action of two lengths of current-carrying wire is proportional to their lengths and to the intensities of their currents.

Ampère begun developing a mathematical and physical theory to understand the relationship between electricity and magnetism.

Several other experiments followed, with André-Marie Ampère, who in 1820 discovered that the magnetic field circulating in a closed-path was related to the current flowing through the perimeter of the path ; Carl Friedrich Gauss ; Jean-Baptiste Biot and Félix Savart, both of which in 1820 came up with the Biot-Savart Law giving an equation for the magnetic field from a current-carrying wire ; Michael Faraday, who in 1831 found that a time-varying magnetic flux through a loop of wire induced a voltage, and others finding further links between magnetism and electricity.

Extending these experiments, Ampère published his own successful model of magnetism in 1825.

Also in this work, Ampère introduced the term electrodynamics to describe the relationship between electricity and magnetism.

* 1826: André-Marie Ampère develops Ampère's circuital law showing that electric current produces a magnetic field.

French Enlightenment masterpieces such as Georges-Louis Leclerc, comte de Buffon ’ s Histoire naturelle, générale et particulière ( begun in 1749 ) and Denis Diderot and Jean le Rond d ' Alembert ’ s Encyclopédie ( volumes added between 1751 and 1772 ) thus became Ampère ’ s schoolmasters.

Further, Ampère derived both Ampère's force law describing the force between two currents and Ampère's law which, like the Biot – Savart law, correctly described the magnetic field generated by a steady current.

The symbol was used by André-Marie Ampère, after whom the unit of electric current is named, in formulating the eponymous Ampère's force law which he discovered in 1820.

File: Andre-marie-ampere2. jpg | André-Marie Ampère ( 1777-1836 ): main founder of electrodynamics, showed how an electric current produces a magnetic field, stated that the mutual action of two lengths of current-carrying wire is proportional to their lengths and to the intensities of their currents ( Ampère's law ), namesake of the unit of electric current ( the ampere )

In classical electromagnetism, Ampère's circuital law, discovered by André-Marie Ampère in 1826, relates the integrated magnetic field around a closed loop to the electric current passing through the loop.

* Ampère's law – André-Marie Ampère

In the following year Ozanam was sent to study law in Paris, where he fell in with the Ampère family ( living for a time with the mathematician André-Marie Ampère ), and through them with other leaders of the neo-Catholic movement, such as François-René de Chateaubriand, Jean-Baptiste Henri Lacordaire, and Charles Forbes René de Montalembert.

It is named after André-Marie Ampère ( 1775 – 1836 ), French mathematician and physicist, considered the father of electrodynamics.

André-Marie Ampère ( 20 January 1775 – 10 June 1836 ) was a French physicist and mathematician who is generally regarded as one of the main founders of the science of classical electromagnetism, which he referred to as " electrodynamics ".

Ampère was born on 20 January 1775 to Jean-Jacques Ampère, a prosperous businessman, and Jeanne Antoinette Desutières-Sarcey Ampère during the height of the French Enlightenment.

) Ampère ’ s maturation corresponded with the transition to the Napoleonic regime in France, and the young father and teacher found new opportunities for success within the technocratic structures favoured by the new French emperor.

In September of 1820, Ampère ’ s friend and eventual eulogist François Arago showed the members of the French Academy of Sciences the surprising discovery of Danish physicist Hans Christian Ørsted that a magnetic needle is deflected by an adjacent electric current.

Jean-Jacques Ampère ( 12 August 1800 – 27 March 1864 ) was a French philologist and man of letters.

* 1864 – Jean-Jacques Ampère, French scholar ( b. 1800 )

* August 12 – Jean-Jacques Ampère, French philologist, writer, and historian ( d. 1864 )

* January 20 – André-Marie Ampère, French physicist ( d. 1836 )

* January 22-André-Marie Ampère, French physicist ( died 1836 )

French physicist André-Marie Ampère was among the first scientists to take seriously accounts of raining animals.

The Ampère was a French automobile built at Billancourt from 1906 to 1909.

* Ampère ( car ), a French automobile, built 1906 – 9

* Jean-Jacques Ampère ( 1800 – 64 ), French philologist

Born in Lyon, he was the only son of the physicist André-Marie Ampère.

* June 10 – André-Marie Ampère, physicist ( b. 1775 )

* André-Marie Ampère ( 1775 – 1836 ), physicist ( namesake of electrical unit ampere )

* June 10-André-Marie Ampère ( born 1775 ), physicist.

* André-Marie Ampère ( 1775 – 1836 ), physicist and mathematician