Solenoid (physics): Difference between revisions

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imported>Paul Wormer
(New page: {{subpages}} [[Image:Solenoid.png|right|thumb|300px|A solenoid. The direct current ''i'' enters at the left and travels around the cylinder through the conducting wire. Two magnetic field ...)
 
imported>Paul Wormer
m (Solenoid moved to Solenoid (physics): Other fields than physics know solenoids, I won't write about those)
(No difference)

Revision as of 10:05, 16 June 2008

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A solenoid. The direct current i enters at the left and travels around the cylinder through the conducting wire. Two magnetic field lines are shown in blue. The magnetic induction B is a vector field tangent to field lines. The direction of B and i are connected via the right screw rule.

In physics, a solenoid is a spiral of insulating wire wound around a cylinder. When a direct current passes through the wire a magnetic field is generated. Usually the cylinder is made of iron or other ferromagnetic material that enhances the magnetic field.

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