File:VFPt Solenoid correct2.svg
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Size of this PNG preview of this SVG file: 490 × 200 pixels. Other resolutions: 320 × 131 pixels | 640 × 261 pixels | 1,024 × 418 pixels | 1,280 × 522 pixels | 2,560 × 1,045 pixels.
Original file (SVG file, nominally 490 × 200 pixels, file size: 15 KB)
Summary
| Description |
English: Diagram of a solenoid and its magnetic field lines. The shape of all lines was computed according to the laws of electrodynamics. |
| Date | |
| Source | Own work |
| Author | Geek3 |
| Other versions | |
| SVG development |  This plot was created with VectorFieldPlot. |
| Source code | Python code# paste this code at the end of VectorFieldPlot 3.3
# https://commons.wikimedia.org/wiki/User:Geek3/VectorFieldPlot
doc = FieldplotDocument('VFPt_Solenoid_correct2',
width=490, height=200, unit=100, commons=True, bg_color=None)
doc.arrow_geo = {'x_nock':-2, 'x_head':4, 'x_tail':-2, 'width':4}
R = 0.49
L = 1.96
field = Field([ ['coil', {'x':0, 'y':0, 'phi':0, 'R':R, 'Lhalf':L/2, 'I':1}] ])
for a in [-0.455, -0.385, -0.275, -0.165, -0.055, 0.055, 0.165, 0.275, 0.385, 0.455]:
line = FieldLine(field, [0, a], directions='both', maxr=3.5)
doc.draw_line(line, linewidth=1.0, arrows_style={'dist':1.5,
'min_arrows':1, 'max_arrows':3, 'scale':2,
'offsets':{'start':1, 'leave_image':0.25, 'enter_image':0.25, 'end':1} })
current_out = doc.draw_object('g', {'id':'current_out'}, group=doc._get_defs())
doc.draw_object('circle', {'cx':'0', 'cy':'0', 'r':12.5, 'fill':'#ffffff',
'stroke':'#000000', 'stroke-width':3}, group=current_out)
doc.draw_object('circle', {'cx':'0', 'cy':'0', 'r':2.6, 'fill':'#000000',
'stroke':'none'}, group=current_out)
current_in = doc.draw_object('g', {'id':'current_in'}, group=doc._get_defs())
doc.draw_object('circle', {'cx':'0', 'cy':'0', 'r':12.5, 'fill':'#ffffff',
'stroke':'#000000', 'stroke-width':3}, group=current_in)
doc.draw_object('path', {'d':"M -8.8,-8.8 L 8.8,8.8 M -8.8,8.8 L 8.8,-8.8",
'fill':'none', 'stroke':'#000000', 'stroke-width':3}, group=current_in)
for x in sc.linspace(-0.84, 0.84, 7):
doc.draw_object('use', {'{http://www.w3.org/1999/xlink}href':'#current_out',
'transform':"translate({:.3f},{:.3f}) scale(0.01, 0.01)".format(x, R)})
doc.draw_object('use', {'{http://www.w3.org/1999/xlink}href':'#current_in',
'transform':"translate({:.3f},{:.3f}) scale(0.01, 0.01)".format(x, -R)})
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. |
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.
You may select the license of your choice.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:29, 14 September 2019 | | 490 × 200 (15 KB) | wikimediacommons>Geek3 | validator fix |
File usage
The following 2 pages use this file:
