Distribution of Potential around a Charged Wire within a Rectangular Tube as Determined by the Method of Images.—The author derives the general equation for potential, given by Kunz and Bayley in the preceding paper, directly from Euler's infinite product expansion for the sine, thus avoiding the use of elliptic functions. Equipotential lines and lines of force are shown for two cases, a square and a rectangular tube; also curves giving the fall of potential along certain important lines.

• Received 5 June 1920

DOI:https://doi.org/10.1103/PhysRev.17.157