The Physics Classroom: Ohm's Law

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written by Tom Henderson

This interactive tutorial on Ohm's Law, part of The Physics Classroom tutorial collection, provides a conceptual foundation for understanding one of the most powerful formulas in physics. Multiple circuit diagrams and tables illustrate the relationships among voltage, current, and resistance before users explore the mathematics. The author includes two quizzes for users to gauge their own understanding and perform simple calculations related to resistance.

This page is part of The Physics Classroom, a comprehensive set of interactive tutorials, labs, and simulations for students of introductory physics. The Physics Classroom is one of the ComPADRE digital library collections.

https://www.physicsclassroom.com/Class/circuits/u9l3c.cfm

Subjects	Levels	Resource Types
Electricity & Magnetism - DC Circuits = Ohm's Law - Resistance	- High School - Lower Undergraduate	- Instructional Material = Problem/Problem Set = Tutorial

Intended Users	Formats	Ratings
- Learners - Educators	- text/html - image/gif	Currently 0.0/5 Want to rate this material? Login here!

Access Rights:: Free access
Restriction:: © 1996 Tom Henderson
Keywords:: Ohm, charge, charge carriers, circuits, conducting wires, current, electric current, electricity tutorial, interactive tutorial, resistivity, resistivity, tutorial
Record Cloner:: Metadata instance created June 22, 2010 by Caroline Hall
Record Updated:: July 3, 2011 by Tom Henderson
Last Update when Cataloged:: December 12, 2008
Other Collections:: The Physics Front

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Record Link

<a href="https://www.compadre.org/portal/items/detail.cfm?ID=10117">Henderson, Tom. The Physics Classroom: Ohm's Law. December 12, 2008.</a>

AIP Format

T. Henderson, (1996), WWW Document, (https://www.physicsclassroom.com/Class/circuits/u9l3c.cfm).

AJP/PRST-PER

T. Henderson, The Physics Classroom: Ohm's Law (1996), <https://www.physicsclassroom.com/Class/circuits/u9l3c.cfm>.

APA Format

Henderson, T. (2008, December 12). The Physics Classroom: Ohm's Law. Retrieved May 1, 2025, from https://www.physicsclassroom.com/Class/circuits/u9l3c.cfm

Chicago Format

Henderson, Tom. The Physics Classroom: Ohm's Law. December 12, 2008. https://www.physicsclassroom.com/Class/circuits/u9l3c.cfm (accessed 1 May 2025).

MLA Format

Henderson, Tom. The Physics Classroom: Ohm's Law. 1996. 12 Dec. 2008. 1 May 2025 <https://www.physicsclassroom.com/Class/circuits/u9l3c.cfm>.

BibTeX Export Format

@misc{ Author = "Tom Henderson", Title = {The Physics Classroom: Ohm's Law}, Volume = {2025}, Number = {1 May 2025}, Month = {December 12, 2008}, Year = {1996} }

Refer Export Format

%A Tom Henderson %T The Physics Classroom: Ohm's Law %D December 12, 2008 %U https://www.physicsclassroom.com/Class/circuits/u9l3c.cfm %O text/html

EndNote Export Format

%0 Electronic Source %A Henderson, Tom %D December 12, 2008 %T The Physics Classroom: Ohm's Law %V 2025 %N 1 May 2025 %8 December 12, 2008 %9 text/html %U https://www.physicsclassroom.com/Class/circuits/u9l3c.cfm

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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 Style.org: Electronic References.

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