written by Anne Cox

The EJS Faraday Disk Dynamo shows a conducting disk that rotates in a magnetic field. This produces a current (homopolar generator) and for certain configurations, it is a self-exciting dynamo. A self-exciting dynamo is the mechanical analog of a proposed mechanism to produce the earth and sun's magnetic fields. 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 Faraday Disk Dynamo 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_FaradayDiskDynamo.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.

• Download ejs_em_FaradayDiskDynamo.jar - 2328kb Java Archive File

Last Modified June 6, 2014

This file has previous versions.

Source Code for the Faraday Disk Dynamo Model program. The source code zip archive contains an XML representation of the model.  Unzip this archive in your EJS workspace to compile and run this model using EJS.

• Download ejs_em_FaradayDiskDynamo.zip - 80kb Compressed File

Released under a This material is released under the GNU General Public License Version 3.

Published September 4, 2009
Last Modified June 6, 2014

This file has previous versions.