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Original file (SVG file, nominally 800 × 600 pixels, file size: 50 KB)
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Summary
| Description |
English: Magnetic field of an two ideal cylindrical magnets with their axis of symmetry inside the image plane. Both magnets are aligned on their common axis in different directions, which creates an repelling force. |
| Date | |
| Source | Own work |
| Author | Geek3 |
| Other versions |
Field lines match the experimental field shape in  . |
| SVG development | |
| Source code | Python code# paste this code at the end of VectorFieldPlot 1.0
doc = FieldplotDocument('VFPt_cylindrical_magnets_repelling', commons=True)
field = Field({'coils':[[-1.5, 0, 0, 0.25, 0.75 ,1], [1.5, 0, 0., 0.25, 0.75 ,-1]]})
doc.draw_magnets(field)
n = 15
for i in range(n):
for x0 in (-1.5, 1.5):
a = -0.25 + 0.5 * (0.5 + i) / n
if i in [5, 6, 8, 9]: d = 'backward'
else: d = 'both'
if i == n/2: of = [1.0, 0.5, 0.5, 0.2]
else: of = [1.0, 0.5, 0.5, 1.0]
line = FieldLine(field, [x0, a], directions=d, maxr=10.0)
doc.draw_line(line, arrows_style={'dist':1.7, 'offsets':of})
for x0, y0 in ((-0.11, -1), (0.11, -1), (-0.11, 1), (0.11, 1)):
line = FieldLine(field, [x0, y0], directions='both',
maxr=10.0, bounds_func=lambda p: abs(p[0])-1.5)
doc.draw_line(line, arrows_style={'dist':1.7, 'offsets':[0.5, 0.5, 0.8, 1.0]})
doc.write()
|
Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
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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:
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- 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.
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File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:36, 14 August 2010 | | 800 × 600 (50 KB) | Geek3 | valid encoding |
| 14:29, 5 June 2010 |  | 800 × 600 (50 KB) | Geek3 | VFPt_cylindrical_magnets_repelling |
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