See epe around different charges
Author: Helen Reynolds
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Space Around Charge Lab
Electrical potential energy
See 3D potential and force around charges
See equipotentials with probes
http://www.physicsclassroom.com/Physics-Interactives/Static-Electricity/Electrostatics-Landscapes
Coulomb’s Law
Coulomb’s Law
Quick plot of F vs r and EPE vs r graphs
http://physics.bu.edu/~duffy/HTML5/force_PE2.html
Helen rates this resource as Good
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