Consider two long, parallel, and oppositely charged wires
Chapter 26, Problem 74(choose chapter or problem)
Consider two long, parallel, and oppositely charged wires of radius r with their centers separated by a distance D that is much larger than r. Assuming the charge is distributed uniformly on the surface of each wire, show that the capacitance per unit length of this pair of wires is C , 5 pP0 ln 1D/r
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