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Re: equipotentials

By definition, an equipotential surface is one that has the same value
of the electric potential everywhere. Thus, you can't have two
different equipotential surfaces that cross.


Dr. Mark H. Shapiro
Professor of Physics, Emeritus
California State University, Fullerton
Phone: 714 278-3884
FAX: 714 278-5810
travel and family pictures:

-----Original Message-----
From: Forum for Physics Educators [] On
Behalf Of Justin Parke
Sent: Friday, February 20, 2004 8:32 AM
Subject: equipotentials

Can equipotential surfaces cross? If so then in what direction does the
electric field point at the line of intersection?

(This is another disagreement between me and the "back of the book"
answer for a textbook question)

Justin Parke
Oakland Mills High School
Columbia, MD