Infinite solenoid

The Modèle of the infinite solenoid constitutes the base of the theoretical study of the Solénoïde S realities. Constituted of an infinitely long supposed winding, such a solenoid traversed by a current of intensity I creates a interior Magnetic field:

$\backslash \; vec\; \{B\}\; =\; \backslash \; driven\; NR\; I$

• μ is the magnetic Perméabilité medium;

• NR is the number of revolutions per meter;
• I is the intensity of the current traversing winding.

One can then define the Inductance reel like the report/ratio of the Flux of the magnetic field compared to the intensity:

$\backslash \; Phi\; \backslash \; left\; (\backslash \; vec\; B\; \backslash \; right)\; =\; L\; I$

For practical reasons, the real solenoids are often toroidal and consisted of several layers, in order to increase the parameter NR without being too cumbersome. One introduces sometimes a core of Soft iron on the axis, which ensures the diffusion of the magnetic field and increases inductance.

Random links:

Bielefeld | Emmanuel Mounier | Uttwil | Caves of Bétharram | Price Egon Ranshofen-Wertheimer | Kerr-Newman_métrique

© 2007-2008 speedlook.com; article text available under the terms of GFDL, from fr.wikipedia.org