Point Charge Electric Field Demo Model Documents

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Main Document

Point Charge Electric Field Demo Model 

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.

Last Modified August 5, 2013

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Supplemental Documents (3)

Single Particle Modification of Point Charge Model 

The Single Charge Electric Field model shows the electric field from a single charge and introduces the concept of a vector field.  The electric field is defined as the force per unit charge that would be experienced by a very small test charge at a given location. The Single Charge Electric Field model shows an ideal test charge with an arrow that represents the field at the test charge location.  The field magnitude is the length of the arrow at the test charge location and its value is shown in a textbox near the bottom of the view as the test charge is dragged.

Last Modified August 13, 2010

This file has previous versions.

High School Lesson Plan (Electric Field) 

A lesson plan for high school teachers using the Electric Field Model.  Plan includes: essential knowledge, learning ourcomes, student conceptual difficulties, and a Learning Cycle. Authored by Patricia Heller.

Published September 10, 2010
Last Modified December 6, 2010

This file is included in the full-text index.
This file has previous versions.

High School Student Worksheet (Electric Field) 

A student worksheet (high school) to accompany the Learning Cycle document and for use with the Electric Field Model.  Authored by Patricia Heller.

Published September 10, 2010
Last Modified December 5, 2010

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This file has previous versions.

Source Code Documents

Point Charge Electric Field Demo Source Code 

The source code zip archive contains an XML representation of the EJS Point Charge Electric Field Demo model.   Unzip this archive in your EJS workspace to compile and run this model using EJS.

Last Modified August 11, 2010