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Franklin is software for plotting electric field lines and equipotential surfaces around point charges. It is intended as freeware for science education. It is not, however, meant for commercial use or distribution without my permission.

What's New

Version 1.8 is now a Universal Application. It is however very similar to version 1.7. Some of it's features include:
  • Field lines can be generated automatically from the action menu. The menu item "Random Lines" will generate 20 lines per charge. If the charges are of differing magnitude the number of lines emanating from a charge will be proportional to the magnitude of the charge but will still more...


Mac OS X 10.4 or later

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Franklin User Discussion

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Magosilvan Member IconReview+94

It' a really good app and works fine at least under OSX 10.7.5.
Thanks to the developer!

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Version 1.8
Watson1 Member IconReview+0

Every now and then you run across a program which does one thing and does it very well. Franklin lets you visualise electric fields: not just for the one or two special cases that you find in every text-book, but for any arrangement of electric charges in 2 or 3 dimensions. If you teach electricity at any level, you need it: I've used the OS-9 version for several years for teaching a large class of freshman students. V 1.7 is better in all ways.
Why not a perfect 5? Electric field lines have a direction, which one indicates by an arrow: Franklin doesn't draw them!

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Version 1.7
There are no Ratings for this App yet.
> 5 2


Current Version (1.x)


Downloads 4,690
Version Downloads 1,757
License Free
Date 11 Apr 2008
Platform OS X / PPC 32 / Intel 32
Price Free
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