the Florida State University
the National Science Foundation
Matthew J. Parry-Hill
This tutorial from the National High Magnetic Field Laboratory explores the historic device known as a torsion balance. By carefully recording the measurements he obtained with his torsion balance, Coulomb was able to establish the law that bears his name. Coloumb's law states that the attraction or repulsion force between two electrical charges is proportional to their product and inversely proportional to the square of their distance apart.
Magnet Academy is part of a large collection of web-based educational materials for K-20, developed by the National High Magnetic Field Laboratory at Florida State University.
Please note that this resource requires
Java Applet Plug-in.
Coulomb, Coulomb's Law, charge interaction, charge measurement, electrostatic charge, electrostatics, historical instruments, history of electricity, history of science, science history, static charge, torsion balance
Metadata instance created
May 25, 2010
by Caroline Hall
November 5, 2015
by Caroline Hall
Last Update when Cataloged:
December 30, 2009
This resource is part of 2 Physics Front Topical Units.
Topic: "Static" Electricity Unit Title: Electric Force
In this Java simulation, your students play with a replication of Coulomb's historic torsion balance -- a device used to measure electric force between charges. Coulomb's methodical measuring laid the foundation for Coulomb's Law, a fundamental principle of electricity and magnetism.
Topic: Electricity and Electrical Energy Unit Title: Electricity: A Historical Perspective
In this Java simulation, your students play with a replication of Coulomb's historic torsion balance: a device used to measure electric force between charges. Coulomb's methodical measuring laid the foundation for Coulomb's Law, a fundamental principle of electricity and magnetism.
Magnet Academy Museum: Torsion Balance, , edited by K. Coyne (Florida State University, Tallahassee, 2007), <https://nationalmaglab.org/education/magnet-academy/history-of-electricity-magnetism/museum/torsion-balance-1785>.
Coyne, K. (Ed.). (2009, December 30). Magnet Academy Museum: Torsion Balance. Retrieved February 21, 2017, from Florida State University: https://nationalmaglab.org/education/magnet-academy/history-of-electricity-magnetism/museum/torsion-balance-1785
Coyne, Kristen, ed. Magnet Academy Museum: Torsion Balance. Tallahassee: Florida State University, December 30, 2009. https://nationalmaglab.org/education/magnet-academy/history-of-electricity-magnetism/museum/torsion-balance-1785 (accessed 21 February 2017).
%A Kristen Coyne, (ed) %T Magnet Academy Museum: Torsion Balance %D December 30, 2009 %I Florida State University %C Tallahassee %U https://nationalmaglab.org/education/magnet-academy/history-of-electricity-magnetism/museum/torsion-balance-1785 %O text/html
%0 Electronic Source %D December 30, 2009 %T Magnet Academy Museum: Torsion Balance %E Coyne, Kristen %I Florida State University %V 2017 %N 21 February 2017 %8 December 30, 2009 %9 text/html %U https://nationalmaglab.org/education/magnet-academy/history-of-electricity-magnetism/museum/torsion-balance-1785
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