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written by Pascal Renault
This website includes an explanation of impedance in AC circuits, along with an applet that draws graphs and phasor diagrams for some important variables in the circuit.  The explanation of impedance gives formulas for reactance, impedance and resonance, and explains the importance of resonance.  The applet allows the user to vary the frequency, resistance, capacitance, and inductance of the circuit, and the applet can then graph the current, the current-voltage phase difference, or the impedance.

Please note that this resource requires Shockwave.
Subjects Levels Resource Types
Electricity & Magnetism
- AC Circuits
= Impedance
= RLC Circuits - AC
- Electromotive Force and Current
- Lower Undergraduate
- High School
- Instructional Material
= Curriculum support
= Interactive Simulation
= Lecture/Presentation
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
- application/shockwave
- text/html
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Access Rights:
Free access
© 2000 Pascal Renault
RLC circuits, current, phasor, voltage
Record Creator:
Metadata instance created February 22, 2006 by Jason Garman
Record Updated:
August 8, 2016 by Bruce Mason
Last Update
when Cataloged:
March 28, 2001
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
P. Renault, (2000), WWW Document, (
P. Renault, Impedance of Series RLC Circuits, (2000), <>.
APA Format
Renault, P. (2001, March 28). Impedance of Series RLC Circuits. Retrieved September 26, 2020, from
Chicago Format
Renault, Pascal. Impedance of Series RLC Circuits. March 28, 2001. (accessed 26 September 2020).
MLA Format
Renault, Pascal. Impedance of Series RLC Circuits. 2000. 28 Mar. 2001. 26 Sep. 2020 <>.
BibTeX Export Format
@misc{ Author = "Pascal Renault", Title = {Impedance of Series RLC Circuits}, Volume = {2020}, Number = {26 September 2020}, Month = {March 28, 2001}, Year = {2000} }
Refer Export Format

%A Pascal Renault
%T Impedance of Series RLC Circuits
%D March 28, 2001
%O application/java

EndNote Export Format

%0 Electronic Source
%A Renault, Pascal
%D March 28, 2001
%T Impedance of Series RLC Circuits
%V 2020
%N 26 September 2020
%8 March 28, 2001
%9 application/java

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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.

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Impedance of Series RLC Circuits:

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