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written by Paul Falstad
This applet simulates the electric field and potential for various charge distributions, including point, line, dipole, spherical and other charges. There is also a simulation, with adjustable speed, of a charge moving close to the speed of light. The field can be displayed as a velocity or force field with particles following field lines, or as field or equipotential lines. The potential and fields can be displayed in 3-D or on a movable 2-D slice. The field strength and number of particles is adjustable, and the charge can be reversed.  Source code and directions (also in German) are included.

Please note that this resource requires Java.
Subjects Levels Resource Types
Electricity & Magnetism
- Electric Fields and Potential
- Electrostatics
- Upper Undergraduate
- Graduate/Professional
- Lower Undergraduate
- Instructional Material
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- application/java
- application/zip
- text/html
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Access Rights:
Free access
Has a copyright or other licensing restriction.
charge dipole, charged ring, dielectric, electric conductor, infinite plane, line charge, point charge
Record Creator:
Metadata instance created June 17, 2004 by Melanie Carter
Record Updated:
July 13, 2004 by Bruce Mason
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
P. Falstad, , WWW Document, (
P. Falstad, 3-D Electrostatic Field Simulation, <>.
APA Format
Falstad, P. (n.d.). 3-D Electrostatic Field Simulation. Retrieved December 7, 2023, from
Chicago Format
Falstad, Paul. 3-D Electrostatic Field Simulation. (accessed 7 December 2023).
MLA Format
Falstad, Paul. 3-D Electrostatic Field Simulation. 7 Dec. 2023 <>.
BibTeX Export Format
@misc{ Author = "Paul Falstad", Title = {3-D Electrostatic Field Simulation}, Volume = {2023}, Number = {7 December 2023}, Year = {} }
Refer Export Format

%A Paul Falstad %T 3-D Electrostatic Field Simulation %U %O application/java

EndNote Export Format

%0 Electronic Source %A Falstad, Paul %T 3-D Electrostatic Field Simulation %V 2023 %N 7 December 2023 %9 application/java %U

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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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