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File:VFPt cylindrical magnets repelling.svg

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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
InfoField
 
The SVG code is valid.
 
This plot was created with VectorFieldPlot.
 
This file uses embedded text.
Source code
InfoField

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

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GNU head 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.
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depicts

inception

May 2010

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image/svg+xml

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Date/TimeThumbnailDimensionsUserComment
current13:36, 14 August 2010Thumbnail for version as of 13:36, 14 August 2010800 × 600 (50 KB)Geek3valid encoding
14:29, 5 June 2010Thumbnail for version as of 14:29, 5 June 2010800 × 600 (50 KB)Geek3VFPt_cylindrical_magnets_repelling

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