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Point Charge Electric Field in 1D Model Documents

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Main Document

Point Charge Electric Field in 1D Model 

written by Andrew Duffy

This interactive Java simulation models the electric field at various points along a line. In its simplest form, students can investigate the field using only one test charge and one charged particle. Move the test charge along the line and change the sign and magnitude of charge on the particle to see the resulting effect on the electric field. Taking the concept to the next level, students can add a second charged particle on the line. The electric field is represented in two ways. First, the direction of the force on that test charge appears as a vector. Second, the field may be viewed as a graph that plots the electric field as a function of position. Positive field points to the right; negative to the left.

See Supplemental Documents (below) for a student worksheet developed to accompany this resource.

See Annotations (below) for an interactive student tutorial on electric field that provides additional content support.

This item was created with Easy Java Simulations (EJS), a modeling tool that allows users without formal programming experience to generate computer models and simulations. To run the simulation, simply click the Java Archive file below. To modify or customize the model, SEE RELATED MATERIALS for detailed instructions on installing and running the EJS Modeling and Authoring Tool.

Last Modified August 20, 2013

This file has previous versions.

Supplemental Documents

Point Charge Electric Field in 1D Worksheet 

A student worksheet for the Point Charge Electric Field 1D model.

Last Modified June 20, 2010

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

Source Code Documents

Point Charge Electric Field in 1D Source Code 

Source Code for the Point Charge Electric Field in 1D model. 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.

Last Modified June 20, 2010

This file has previous versions.