Magnetic Field of a Solenoid
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A solenoid is a helical coil wound around a cylinder. When a current runs through the coil, a magnetic field is created. The strength of the magnetic field is proportional to the number of turns. This Demonstration approximates the field using the Biot–Savart law by way of superposition point sources in the plane.
Contributed by: Enrique Zeleny (May 2012)
Based on a program by: Paul Nylander
Open content licensed under CC BY-NC-SA
"Magnetic Field of a Solenoid"
Wolfram Demonstrations Project
Published: May 29 2012