Francisco Esquembre, and
The EJS Magnetic Bar Field Model shows the field of a bar magnet and has a movable compass that reports the magnetic field values. The bar magnet model is built by placing a group of magnetic dipoles along the bar magnet. You can modify this simulation if you have Ejs installed by right-clicking within the plot and selecting "Open Ejs Model" from the pop-up menu item.
The Magnetic Bar Field model was created using the Easy Java Simulations (Ejs) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the ejs_em_MagneticBarField.jar file will run the program if Java is installed. Ejs is a part of the Open Source Physics Project and is designed to make it easier to access, modify, and generate computer models. Additional Ejs models are available. They can be found by searching ComPADRE for Open Source Physics, OSP, or Ejs.
Please note that this resource requires
at least version 1.5 of
Christian, W., Esquembre, F., & Cox, A. (2009). Magnetic Bar Field Model (Version 1.0) [Computer software]. Retrieved May 22, 2013, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9414&DocID=1309
Christian, Wolfgang, Francisco Esquembre, and Anne Cox. Magnetic Bar Field Model. Vers. 1.0. Computer software. 2009. Java (JRE) 1.5. 22 May 2013 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9414&DocID=1309>.
%A Wolfgang Christian %A Francisco Esquembre %A Anne Cox %T Magnetic Bar Field Model %D September 3, 2009 %U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9414&DocID=1309 %O 1.0 %O application/java
%0 Computer Program %A Christian, Wolfgang %A Esquembre, Francisco %A Cox, Anne %D September 3, 2009 %T Magnetic Bar Field Model %7 1.0 %8 September 3, 2009 %U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9414&DocID=1309
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1 change the image to png in an attempt to fix the appear disappear when drag from http://phet.colorado.edu/simulations/sims.php?sim=Faradays_Electromagnetic_Lab#topics didnt work though Angry 2 added a slider to simulate "magnetic flux density = 10 to 100 percent" 3 fixed the randomization checkbox to work now by adding to randomPositionCheck Action setLocation () 4 fixed a bug on the markergroup and imagemagnet position not fixed to (xMagnet,yMagnet) 5 show magnetic field inside the magnet made 6 enable option to allow translation of languages
things i want to do but can't figure out yet. a flip magnet simulation possibility better color for the rombus <> blue and red instead of the current teal and red.