Physics 201- Introduction to Electricity & Magnetism
September 25- Electrostatic Potentials






  Electrostatic potential energy and work

The diagram show a top view of a positively charged rod.  Points, A, B, C, and D lie in a plane near the center of the rod.  Points B and C and equidistant from the rod, as are points A and D.

What happens if the moving charge is now -q?  Is the work done by the field positive, negative or zero in going from C to D?

In this case, which points have the highest potential energy?

But, which points have the highest potential? 


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Jeff Phillips
Loyola Marymount University
Fall 2002