Whose name is a unit of electric current?



Whose name is a unit of electric current? The famous French mathematician and scientist Andre-Marie Ampere (Andre-Marie Ampere) was born in Lyon, January 22, 1775. The son of a prosperous merchant of Lyons, Amper was educated at home, mostly self-learning books on mathematics and physics from his father's library. Already in the 14 years he has read all 28 volumes of French "Encyclopedie, studied Latin, Greek and Italian to read the works of scientists in the original. At the age of thirteen years he presented in the Lyon academy his first work on mathematics.

At the age of 26 years old amps became a professor of the Central School in the town of Bourg-en-Bresse. It took another four years, and Ah was invited to Paris to work in the famous Ecole Polytechnique, which then taught the best scientists in France. By 30 years of his life Ampere do a very important scientific work in mathematics and physics, putting it on par with famous scientists in France. In this period of his remarkable works on probability theory and on applications of calculus of variations to mechanics. At the same time, he fulfilled a number of original works on certain problems of mathematical analysis.

The main physical works are devoted to electrodynamics. In 1820, formulated the rule for determining the direction of the magnetic current on a magnetic needle (usually Ampere), undertook a large number of experiments to investigate the interaction between electric current and the magnet, are designed for this set of instruments, found the influence of Earth's magnetic field on the moving conductor. He opened the interaction of electric currents, and established the law of this interaction (Ampere's law), developed the theory of magnetism (1820).

 Whose name is a unit of electric current? Andre-Marie Ampere Ampere first pointed out the close "genetic" relationship between the electric and magnetic processes, and has consistently pursued a purely electric current idea of the origin of magnetism. He opened (1822) the magnetic effect of the coil with a current - solenoid, concluded that the solenoid current streamline is the equivalent of a permanent magnet, has been pushing the idea of increasing the magnetic field inside a solenoid by placing the iron core of soft iron. In 1820 he proposed the use of electromagnetic phenomena for signal transmission. Invented by a switch, the electromagnetic telegraph (1829). Formulated the concept of "kinematics". Studies are also in philosophy and botany. At the end of life Amper has developed a classification of science of his time contained in the "Experience of Philosophy of Science ..." (1834).

We are often faced with the mention of the name Andre-Marie Ampere, may themselves without realizing it. Take a look at any appliance in your home - and you'll find it at its electrical characteristics, such as: «~ 220V 50Hz 3,2 A". This means that the device is powered by a standard AC power voltage of 220 volts with a frequency of 50 hertz, and the power consumed by the device current is 3.2 amps. The unit amperage ampere (abbreviated "A") is just named after the scientist.

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