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  2. Inductance - Wikipedia

    en.wikipedia.org/wiki/Inductance

    The term inductance was coined by Oliver Heaviside in May 1884, as a convenient way to refer to "coefficient of self-induction". [ 2 ] [ 3 ] It is customary to use the symbol L {\displaystyle L} for inductance, in honour of the physicist Heinrich Lenz .

  3. Magnetic reluctance - Wikipedia

    en.wikipedia.org/wiki/Magnetic_reluctance

    Its SI derived unit is the henry (the same as the unit of inductance, although the two concepts are distinct). Magnetic flux always forms a closed loop, as described by Maxwell's equations, but the path of the loop depends on the reluctance of the surrounding materials. It is concentrated around the path of least reluctance.

  4. Solenoid - Wikipedia

    en.wikipedia.org/wiki/Solenoid

    the inductance of a solenoid follows as =. A table of inductance for short solenoids of various diameter to length ratios has been calculated by Dellinger, Whittmore, and Ould. [18] This, and the inductance of more complicated shapes, can be derived from Maxwell's equations. For rigid air-core coils, inductance is a function of coil geometry ...

  5. Electrostatic induction - Wikipedia

    en.wikipedia.org/wiki/Electrostatic_induction

    Electrostatic generators, such as the Wimshurst machine, the Van de Graaff generator and the electrophorus, use this principle. See also Stephen Gray in this context. Due to induction, the electrostatic potential ( voltage ) is constant at any point throughout a conductor. [ 3 ]

  6. Faraday's law of induction - Wikipedia

    en.wikipedia.org/wiki/Faraday's_law_of_induction

    Heaviside's version (see Maxwell–Faraday equation below) is the form recognized today in the group of equations known as Maxwell's equations. Lenz's law , formulated by Emil Lenz in 1834, [ 13 ] describes "flux through the circuit", and gives the direction of the induced emf and current resulting from electromagnetic induction (elaborated ...

  7. Electromagnetic induction - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_induction

    Heaviside's version (see Maxwell–Faraday equation below) is the form recognized today in the group of equations known as Maxwell's equations. In 1834 Heinrich Lenz formulated the law named after him to describe the "flux through the circuit". Lenz's law gives the direction of the induced emf and current resulting from electromagnetic induction.

  8. Lenz's law - Wikipedia

    en.wikipedia.org/wiki/Lenz's_law

    This back-and-forth component of momentum contributes to magnetic inductance. The closer that q 1 and q 2 are, the greater the effect. When q 2 is inside a conductive medium such as a thick slab made of copper or aluminum, it more readily responds to the force applied to it by q 1 .

  9. Induction equation - Wikipedia

    en.wikipedia.org/wiki/Induction_equation

    In magnetohydrodynamics, the induction equation is a partial differential equation that relates the magnetic field and velocity of an electrically conductive fluid such as a plasma. It can be derived from Maxwell's equations and Ohm's law , and plays a major role in plasma physics and astrophysics , especially in dynamo theory .