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Electric Generator Model
written by Anne Cox and Wolfgang Christian
The EJS Electric Generator Model shows a simple electric generator made from a conducting loop rotating in a uniform magnetic field and connected to an ammeter. The model shows a plot of the magnetic flux and induced current. If Ejs is installed, right-clicking within the plot and selecting "Open Ejs Model" from the pop-up menu item allows for editing of the model.

The Electric Generator 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_Generator.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 Java (JRE).
1 source code document is available
Subjects Levels Resource Types
Electricity & Magnetism
- Electromagnetic Induction
= Induced Currents and Forces
= Motors and Generators
- Lower Undergraduate
- High School
- Instructional Material
= Activity
Intended Users Formats Ratings
- Learners
- Educators
- application/java
  • Currently 5.0/5

Rated 5.0 stars by 1 person

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Access Rights:
Free access
This material is released under a GNU General Public License Version 3 license. Additional information is available.
Rights Holder:
Anne J Cox
Ejs, Faraday, Faraday's law, Lenz, Lenz's law, OSP, emf
Record Cloner:
Metadata instance created July 2, 2009 by Anne Cox
Record Updated:
June 6, 2014 by Andreu Glasmann
Last Update
when Cataloged:
July 2, 2009
Other Collections:

Thanks for sharing!

Author: lookang
Posted: November 23, 2009 at 6:39AM
Source: The Open Source Physics collection

U guys are doing great work in helping school teachers translating research into classroom practices. Keep up the great work.  

hope i can be like you guys and be agents of change in physics education. :)

» reply

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AAAS Benchmark Alignments (1993 Version)


G. Forces of Nature
  • 4G (9-12) #5.  Magnetic forces are very closely related to electric forces and can be thought of as different aspects of a single electromagnetic force. Moving electric charges produce magnetic forces and moving magnets produce electric forces. The interplay of electric and magnetic forces is the basis for electric motors, generators, and many other modern technologies, including the production of electromagnetic waves.
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
A. Cox and W. Christian, Computer Program ELECTRIC GENERATOR MODEL, Version 1.0 (2009), WWW Document, (
A. Cox and W. Christian, Computer Program ELECTRIC GENERATOR MODEL, Version 1.0 (2009), <>.
APA Format
Cox, A., & Christian, W. (2009). Electric Generator Model (Version 1.0) [Computer software]. Retrieved January 22, 2018, from
Chicago Format
Cox, Anne, and Wolfgang Christian. "Electric Generator Model." Version 1.0. (accessed 22 January 2018).
MLA Format
Cox, Anne, and Wolfgang Christian. Electric Generator Model. Vers. 1.0. Computer software. 2009. Java (JRE) 1.5. 22 Jan. 2018 <>.
BibTeX Export Format
@misc{ Author = "Anne Cox and Wolfgang Christian", Title = {Electric Generator Model}, Month = {July}, Year = {2009} }
Refer Export Format

%A Anne Cox
%A Wolfgang Christian
%T Electric Generator Model
%D July 2, 2009
%O 1.0
%O application/java

EndNote Export Format

%0 Computer Program
%A Cox, Anne
%A Christian, Wolfgang
%D July 2, 2009
%T Electric Generator Model
%7 1.0
%8 July 2, 2009

Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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