File:Magnetic rope.svg

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Summary

Description
English: The self-constricting magnetic field lines and current paths in a Birkeland current (or magnetic rope). The current is strongest at the axis and becomes weaker further away. Current flows parallel to the magnetic field, and derives partly from an external axial field and partly from the toroidal field produced by the current itself.
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Source http://history.nasa.gov/SP-345/ch15.htm#250
Author NASA; edited by Jaybear
 
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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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23 June 2012

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current10:21, 23 March 2013262 × 432 (14 KB)Jaybearcorrection of doubled patches;

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