Wednesday, 13 August 2014

Electromagnetism

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Electromagnetism
Solenoid
Electricity Magnetism
Electrostatics[show]
Magnetostatics[show]
Electrodynamics[hide]
Lorentz force law
Electromagnetic induction
Faraday's law
Lenz's law Displacement current
Maxwell's equations
Electromagnetic field
Electromagnetic radiation
Maxwell tensor Poynting vector
Liénard–Wiechert potential
Jefimenko's equations
Eddy current
London equations
Electrical network[show]
Covariant formulation[show]
Scientists[show]
v t e
Electromagnetism, or the electromagnetic force is one of the four axiological interactions in nature, the added three getting the able interaction, the anemic interaction, and gravitation. This force is declared by electromagnetic fields, and has innumerable concrete instances including the alternation of electrically answerable particles and the alternation of uncharged alluring force fields with electrical conductors.
The chat electromagnetism is a admixture anatomy of two Greek terms, бјўО»ОµОєП„ПЃОїОЅ, Д“lektron, "amber", and ОјО±ОіОЅО®П„О·П‚, magnetic, from "magnГ­tis lГ­thos" (ОјО±ОіОЅО®П„О·П‚ О»ОЇОёОїП‚), which agency "magnesian stone", a blazon of adamant ore. The science of electromagnetic phenomena is authentic in agreement of the electromagnetic force, sometimes alleged the Lorentz force, which includes both electricity and allure as elements of one phenomenon.
During the quark epoch, the electroweak force breach into the electromagnetic and anemic force. The electromagnetic force plays a above role in free the centralized backdrop of a lot of altar encountered in circadian life. Ordinary amount takes its anatomy as a aftereffect of intermolecular armament amid alone molecules in matter. Electrons are apprenticed by electromagnetic beachcomber mechanics into orbitals about diminutive nuclei to anatomy atoms, which are the architecture blocks of molecules. This governs the processes complex in chemistry, which appear from interactions amid the electrons of adjoining atoms, which are in about-face bent by the alternation amid electromagnetic force and the drive of the electrons.
There are abundant algebraic descriptions of the electromagnetic field. In classical electrodynamics, electric fields are declared as electric abeyant and electric accepted in Ohm's law, alluring fields are associated with electromagnetic consecration and magnetism, and Maxwell's equations call how electric and alluring fields are generated and adapted by anniversary added and by accuse and currents.
The abstract implications of electromagnetism, in accurate the enactment of the acceleration of ablaze based on backdrop of the "medium" of advancement (permeability and permittivity), led to the development of appropriate relativity by Albert Einstein in 1905.
Contents [hide]
1 History of the theory
2 Overview
3 Classical electrodynamics
4 Photoelectric effect
5 Quantities and units
6 Electromagnetic phenomena
7 Electromagnetic induction
8 Electromagnetic surveys
9 See also
10 Notes
11 Further reading
11.1 Web sources
11.2 Lecture notes
11.3 Textbooks
11.4 General references
12 External links

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