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
This resource is part of a Physics Front Topical Unit.
Topic: Electricity and Electrical Energy Unit Title: Moving Charges and Electric Circuits
This interactive applet displays the phasor diagram for an AC circuit. Probably best used within a teacher-directed activity, it is intended to show current through a circuit as a function of frequency. By controlling the frequency, resistance, capacitance, and inductance of the circuit, students can conceptualize the relationship of these variables and better understand how to interpret the related graphs.
%0 Electronic Source %A Renault, Pascal %D March 28, 2001 %T Impedance of Series RLC Circuits %V 2013 %N 6 December 2013 %8 March 28, 2001 %9 application/java %U http://mysite.verizon.net/vzeoacw1/impedance.html
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