Potential

20130226-144501.jpg107 One of the things I love about Excel is making 3-D surface charts. Here a student has placed three charges and has entered formulas to calculate the electric potential at a grid of points around the region where the charges are. You can find instructions in this pdf by Bob Beichner. The instructions have been published in The Physics Teacher [Phys. Teach. 35, 95 (1997)].

 

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