Electromagnetism/Related Articles

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A list of Citizendium articles, and planned articles, about Electromagnetism.
See also changes related to Electromagnetism, or pages that link to Electromagnetism or to this page or whose text contains "Electromagnetism".

Parent topics

Subtopics

General topics

Electromagnetism in materials

Laws and equations

  • Ampere's equation [r]: An expression for the magnetic force between two electric current-carrying wire segments. [e]
  • Ampere's law [r]: The integral of a magnetic field over a closed path is equal to the conduction current through the surface bounded by the path. [e]
  • Ampere's rule [r]: Is a right-hand rule for the direction of deviation of a compass needle caused by the presence of a straight, electric-current carrying, wire. [e]
  • Biot-Savart law [r]: Gives the magnetic field at some distance of an electric current-carrying wire. [e]
  • Coulomb's law [r]: An inverse-square distance law, like Newton's gravitational law, describing the forces acting between electric point charges; also valid for the force between magnetic poles. [e]
  • Coulomb's law (magnetic) [r]: An inverse-square law for the force between two magnetic monopoles. [e]
  • Faraday's law (electromagnetism) [r]: States that a change in magnetic flux generates an electromotive force (EMF). [e]
  • Gauss' law (electrostatics) [r]: Relates the surface integral of the electric displacement through a closed surface to the electric charge enveloped by the closed surface. [e]
  • Gauss' law (magnetism) [r]: States that the total magnetic flux through a closed surface is zero; this means that magnetic monopoles do not exist. [e]
  • Lenz' law [r]: States that a change in magnetic flux gives an induced current that opposes this change. [e]
  • Maxwell equations [r]: Mathematical equations describing the interrelationship between electric and magnetic fields; dependence of the fields on electric charge- and current- densities. [e]

Units

  • SI [r]: Metric unit system based on the metre, kilogram, second, ampere, kelvin, mole and candela. [e]
  • Gaussian units [r]: A centimeter-gram-second system of units often used in electrodynamics and special relativity. [e] (and other EM Units)
    • Abampere [r]: Unit of electric current in the cgs-emu system of units; symbol abA; 1 abA = 10 A. [e]
    • Statampere [r]: Electric current in the Gaussian system of units; symbol statA; 1 statA = 1 A/(10⋅c); c is the speed of light in m/s. [e]
    • Abcoulomb [r]: Unit of electric charge in cgs-emu system of units; symbol abC; 1 abC = 10 C. [e]
    • Statcoulomb [r]: Unit of electric charge in cgs-esu units: 1 statC = C/(10⋅c), with c the speed of light in m/s. [e]
    • Maxwell (unit) [r]: Gaussian unit of magnetic flux; symbol Mx; 1 Mx = 1 abV⋅s = 10−8 Wb. [e]
    • Oersted (unit) [r]: Unit of magnetic-field strength |H| in the Gaussian system of units; symbol Oe; 1 Oe = 1000/4π  A⋅turn/m. [e]
    • Abvolt [r]: Unit of voltage difference in the cgs-emu system of units; symbol abV; 1 abV = 1 erg/(s⋅abA) = 10−8 V. [e]
    • Statvolt [r]: Unit of electric voltage; symbol statV; 1 statV = 10−6×c volt; c speed of light in m/s. [e]
    • Gauss (unit) [r]: Gaussian unit of magnetic flux density B; symbol G; 1 G = 1 Mx/cm2 = 10 000 T. [e]
    • Electronvolt [r]: Unit of energy; 1 eV = 1.602 176 487 × 10−19 joule [e]

Contributors

  • André-Marie Ampère [r]: (Lyons 20 January, 1775 – Marseilles 10 June, 1836) French physicist and mathematician best known for his work in electricity and magnetism. [e]
  • Jean-Baptiste Biot [r]: (Paris 1774 – Paris 1862) French physicist, mathematician, astronomer, and chemist best known for the Biot-Savart law. [e]
  • Charles-Augustin de Coulomb [r]: (Angoulême June 14, 1736 – Paris August 23, 1806) French physicist known for formulating a law for the force between two electrically charged bodies. [e]
  • Michael Faraday [r]: (1791 – 1867) Was an English physicist and chemist whose best known work was on the closely connected phenomena of electricity and magnetism; his discoveries lead to the electrification of industrial societies. [e]
  • Carl Friedrich Gauss [r]: German mathematician, who was one of the most influential figures in the history of mathematics and mathematical physics (1777 – 1855). [e]
  • Hendrik Antoon Lorentz [r]: Dutch theoretical physicist (1853 - 1928) [e]
  • James Clerk Maxwell [r]: (1831 – 1879) Scottish physicist best known for his formulation of electromagnetic theory and the statistical theory of gases. [e]
  • Hans Christian Oersted [r]: (Rudkøbing, August 14, 1777 – Copenhagen, March 9, 1851) Danish physicist and chemist best known for his discovery of the influence of an electric current on the orientation of a compass needle. [e]
  • Felix Savart [r]: (Mézières 30 June 1791 – Paris 16 March 1841) French physicist, known for the Biot-Savart law. [e]
  • Wilhelm Eduard Weber [r]: (Wittenberg October 24, 1804 – Göttingen June 23, 1891) German physicist known for his work in magnetism and on electromagnetic units. [e]

Other related topics