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written by Wolfgang Christian
The Point Charge Electric Field Demo model shows the electric field with multiple point charge configurations and vector field visualizations.  Users can select these configurations from a drop down menu or can create their own configurations.

The Point Charge Electric Field Demo model was created using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double click the ejs_em_PointChargeElectricFieldDemo.jar file to run the program if Java is installed.

Please note that this resource requires at least version 1.5 of Java.
View the supplemental documents attached to this resource (3)
View the source code document attached to this resource
Subjects Levels Resource Types
Electricity & Magnetism
- Electric Fields and Potential
= Electric Field
- Lower Undergraduate
- Middle School
- High School
- Instructional Material
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
  • Currently 5.0/5

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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:
Wolfgang Christian
Record Cloner:
Metadata instance created August 11, 2010 by Wolfgang Christian
Record Updated:
June 11, 2014 by Andreu Glasmann
Last Update
when Cataloged:
September 1, 2009
Other Collections:

If Field Lines can be added, it would a great visualization tool

Author: lookang
Posted: August 21, 2010 at 11:26PM
Source: The Open Source Physics collection

i have always been very impressed by Physlets Electric field lines java applet
the field lines is a concept continued to be explained in textbooks instead of the easily field vectors which is a common visualization in physics Ejs model.

chance to reproduce the field lines in this Ejs model? i believe it will be a great visualization tool.

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AAAS Benchmark Alignments (2008 Version)

4. The Physical Setting

4G. Forces of Nature
  • 3-5: 4G/E3. Without touching them, an object that has been electrically charged pulls on all other uncharged objects and may either push or pull other charged objects.

AAAS Benchmark Alignments (1993 Version)


G. Forces of Nature
  • 4G (9-12) #3.  There are two kinds of charges?positive and negative. Like charges repel one another, opposite charges attract. In materials, there are almost exactly equal proportions of positive and negative charges, making the materials as a whole electrically neutral. Negative charges, being associated with electrons, are far more mobile in materials than positive charges are. A very small excess or deficit of negative charges in a material produces noticeable electric forces.

NSES Content Standards

Con.B: Physical Science
  • K-4: Light, Heat, Electricity, Magnetism
  • 5-8: Motion & Forces
  • 9-12: Interactions of Energy & Matter
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
W. Christian, Computer Program POINT CHARGE ELECTRIC FIELD DEMO MODEL, Version 1.0 (2010), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=10312&DocID=1799).
W. Christian, Computer Program POINT CHARGE ELECTRIC FIELD DEMO MODEL, Version 1.0 (2010), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=10312&DocID=1799>.
APA Format
Christian, W. (2010). Point Charge Electric Field Demo Model (Version 1.0) [Computer software]. Retrieved July 5, 2015, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=10312&DocID=1799
Chicago Format
Christian, Wolfgang. "Point Charge Electric Field Demo Model." Version 1.0. http://www.compadre.org/Repository/document/ServeFile.cfm?ID=10312&DocID=1799 (accessed 5 July 2015).
MLA Format
Christian, Wolfgang. Point Charge Electric Field Demo Model. Vers. 1.0. Computer software. 2010. Java 1.5. 5 July 2015 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=10312&DocID=1799>.
BibTeX Export Format
@misc{ Author = "Wolfgang Christian", Title = {Point Charge Electric Field Demo Model}, Month = {September}, Year = {2009} }
Refer Export Format

%A Wolfgang Christian
%T Point Charge Electric Field Demo Model
%D September 1, 2009
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=10312&DocID=1799
%O 1.0
%O application/java

EndNote Export Format

%0 Computer Program
%A Christian, Wolfgang
%D September 1, 2009
%T Point Charge Electric Field Demo Model
%7 1.0
%8 September 1, 2009
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=10312&DocID=1799

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Point Charge Electric Field Demo Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Point Charge Electric Field Demo Model.

relation by Wolfgang Christian
Is a Teaching Guide For Physics Classroom: Electric Field Lines

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