the National Science Foundation
At this webpage you can find a simulation-based tutorial on resistance. It contains three interactive simulations: one allows you to glimpse resistance at the molecular level, the second explores Ohm's Law, and the third introduces the use of color coding in composition resistors. Diagrams illustrate arrangements of resistors in series and parallel circuits, with explanations of how to calculate equivalent resistances.
This resource is part of the Molecular Expressions project at the National High Magnetic Field Laboratory at Florida State University.
Limited free access
Use is limited to download of a single copy of this material on a single computer for personal or non-commercial use. Materials may not be modified, derived, or transferred without permission.
%0 Electronic Source %A Davidson, Michael %D January 28, 2003 %T Molecular Expressions: Electricity & Magnetism: Resistance %V 2014 %N 10 March 2014 %8 January 28, 2003 %9 text/html %U http://micro.magnet.fsu.edu/electromag/electricity/resistance.html
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