Georgia State University
Georgia State University: Hyper Physics: Point Charge Potential
This site from the Georgia State University explains the concept of electric potential about a point charge or combination of severat point charges. An interactive JavaScript form allows the visitor to investigate the effect of distance...
Georgia State University
Georgia State University: Hyper Physics: Equipotential Lines
At this site from the Georgia State University, the equipotential lines around several different configuration of charges are shown and described. Excellent graphics and clear discussion.