Wikimore

Summary

Description

English: Magnetic field of a cylindrical coil made of six identical rings with its axis of symmetry inside the image plane. The dots symbolize where the current flows out of the image plane, whereas the crosses are where the current flows into the plane.

Date

June 2010

Source

Own work

Author

Geek3

SVG development

The source code of this SVG is invalid due to VectorFieldPlot errors.

This W3C-invalid vector image was created with Inkscape, or with something else.

Category:Invalid SVG created with Inkscape#2222VFPt%20cylindrical%20coil%20real.svg Category:Created with Inkscape-undef

Quality image

This image has been assessed using the Quality image guidelines and is considered a Quality image.

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Category:Quality images - valid vector

Source code

SVG code

VectorFieldPlot source

# paste this code at the end of VectorFieldPlot 1.0
doc = FieldplotDocument('VFPt_cylindrical_coil_real', commons=True)
r = 1.4
field = Field({'ringcurrents':[[x*r,0,0,r/2,1] for x in sc.linspace(-1,1,6)]})
xy = lambda phi: sc.array([r,0]) + rot([sqrt(1.25)*r,0], phi)
Fr = lambda phi: sc.dot(rot([1,0], phi), field.F(xy(phi)))
phi0 = op.brentq(Fr, 2, pi)
doc.draw_currents(field)
n = 15
for i in range(n):
    a = (0.5 + i) / n
    phi = op.brentq(lambda phi: ig.quad(Fr, -phi0, phi)[0]
        - a * ig.quad(Fr, -phi0, phi0)[0], -phi0, phi0)
    line = FieldLine(field, xy(phi), directions='backward', bounds_func=lambda p: -p[0])
    startp = line.get_polylines()[0]['path'][0]
    line = FieldLine(field, startp, directions='both', maxr=10.0)
    doc.draw_line(line, arrows_style={'dist':2,'offsets':[1.2,0.5,0.5,1.2]})
doc.write()

Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.

Category:License migration redundant#VFPt%20cylindrical%20coil%20real.svg Category:GFDL#VFPt%20cylindrical%20coil%20real.svg

This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

You are free:

to share – to copy, distribute and transmit the work
to remix – to adapt the work

Under the following conditions:

attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Category:CC-BY-SA-3.0#VFPt%20cylindrical%20coil%20real.svg

You may select the license of your choice.

Category:Self-published work Category:Photos by User:Geek3 Category:Magnetic fields around solenoids Category:VFPt electric and magnetic fields (image set)

Wikimore

File:VFPt cylindrical coil real.svg

Summary

SVG code

Licensing