To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.

Magnetic energy

From Wikipedia, the free encyclopedia

Magnetic energy and electrostatic potential energy are related by Maxwell's equations. The potential energy of a magnet of magnetic moment in a magnetic field is defined as the mechanical work of the magnetic force (actually magnetic torque) on the re-alignment of the vector of the Magnetic dipole moment and is equal to:

while the energy stored in an inductor (of inductance ) when a current flows through it is given by:


This second expression forms the basis for superconducting magnetic energy storage.

Energy is also stored in a magnetic field. The energy per unit volume in a region of space of permeability containing magnetic field is:

More generally, if we assume that the medium is paramagnetic or diamagnetic so that a linear constitutive equation exists that relates and , then it can be shown that the magnetic field stores an energy of

where the integral is evaluated over the entire region where the magnetic field exists.[1]


  1. ^ Jackson, John David (1998). Classical Electrodynamics (3rd ed.). New York: Wiley. p. 213. ISBN 0-471-30932-X.

External links

  • Magnetic Energy, Richard Fitzpatrick Professor of Physics The University of Texas at Austin.

This page was last edited on 4 March 2019, at 21:24
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.