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written by Scott Schneider
This applet shows the equipotential lines and the electric field lines for a single positive or negative charge, two equal positive or negative charges, two unequal like or unlike charges, and unequal unlike charges.  The user can adjust the position of all the charges, as well as toggle between the display of electric field lines, electric field vectors, equipotential lines, and combinations of these.  The effect on a test charge can also be observed.

This is part of a large collection of Physlet-based (Physics Java Applet) illustrations and tutorials covering introductory physics.

Please note that this resource requires Java Applet Plug-in.
Subjects Levels Resource Types
Electricity & Magnetism
- Electric Fields and Potential
= Electric Field
= Electrostatic Potential and Potential Energy
- Lower Undergraduate
- High School
- Instructional Material
= Curriculum support
= Interactive Simulation
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Educators
- Learners
- application/java
- text/html
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Access Rights:
Free access
© 1998 Scott Schneider
Tutorials available for download.
electric field, equipotential lines, interactive animation, moving charge, test charge, voltage
Record Cloner:
Metadata instance created October 1, 2006 by jason evans
Record Updated:
February 9, 2011 by Lyle Barbato
Last Update
when Cataloged:
March 15, 2006
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
S. Schneider, (1998), WWW Document, (
S. Schneider, LTU Physlet: Presenting .. Your Equipotentials!, (1998), <>.
APA Format
Schneider, S. (2006, March 15). LTU Physlet: Presenting .. Your Equipotentials!. Retrieved August 23, 2019, from
Chicago Format
Schneider, Scott. LTU Physlet: Presenting .. Your Equipotentials!. March 15, 2006. (accessed 23 August 2019).
MLA Format
Schneider, Scott. LTU Physlet: Presenting .. Your Equipotentials!. 1998. 15 Mar. 2006. 23 Aug. 2019 <>.
BibTeX Export Format
@misc{ Author = "Scott Schneider", Title = {LTU Physlet: Presenting .. Your Equipotentials!}, Volume = {2019}, Number = {23 August 2019}, Month = {March 15, 2006}, Year = {1998} }
Refer Export Format

%A Scott Schneider
%T LTU Physlet: Presenting .. Your Equipotentials!
%D March 15, 2006
%O application/java

EndNote Export Format

%0 Electronic Source
%A Schneider, Scott
%D March 15, 2006
%T LTU Physlet: Presenting .. Your Equipotentials!
%V 2019
%N 23 August 2019
%8 March 15, 2006
%9 application/java

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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