The potential (relative to a point at infinity) midway
Chapter 23, Problem 2DQ(choose chapter or problem)
The potential (relative to a point at infinity) midway between two charges of equal magnitude and opposite sign is zero. Is it possible to bring a test charge from infinity to this midpoint in such a way that no work is done in any part of the displacement? If so, describe how it can be done. If it is not possible, explain why.
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