Surface charges on circuit wires and resistors play three roles

American Journal of Physics

Volumn 64, Issue 7, 1996, Pages 855-870

  Jackson, J D ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0039712609     PISSN: 00029505     EISSN: None     Source Type: Journal    
DOI: 10.1119/1.18112     Document Type: Article

References (38)

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31. J. M. Aguirregabiria, A. Hernandez, and M. Rivas, "An example of surface charge distribution on conductors carrying steady currents," Am. J. Phys. 60, 138-141 (1992). See also J. M. Aguirregabiria, A. Hernandez, and M. Rivas, "Surface charges and energy flow in a ring rotating in a magnetic field," to be published in Am. J. Phys.
32. The first sentence of the italicized statement on p. 211 of Ref. 1 is a clear expression of these global aspects. The second sentence is, however, misleading in its implication that bends in the wires are the only cause of "counter-intuitive" surface charge densities.
33. The choice of a straight conductor precludes illustration of surface charges present to "guide" the current around corners. A generalization of Heald's circuit (Ref. 27) to a circular annulus (cylinder) of finite thickness has an intuitively expected difference in charge density on the inner and outer surfaces to maintain the azimuthal current flow within the annulus.
34. J. N. Marx and D. R. Nygren, "The Time-Projection Chamber," Phys. Today 31 (10), 46-53 (October 1978).
35. The linear vanishing of the charge density at z=0 and z = L is an artifact of the specific termination in flat plates at right angles to the column. See Ref. 15, p. 77. 35 See Ref. 15, p. 77.
36. A generalization of the second form given in Problem 3.21, p. 134 of Ref. 15.
37. 0a in SI notation). Numerically, 1 cm of capacitance = 1.11265 pF≈1 pF.
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