DocumentCode
1413140
Title
Current flow in long conductors with a step conductivity change
Author
Namjoshi, K.V. ; Lavers, J.D. ; Biringer, P.P.
Author_Institution
Dept. of Electr. Comput. Eng., Toronto Univ., Ont., Canada
Volume
34
Issue
4
fYear
1998
fDate
7/1/1998 12:00:00 AM
Firstpage
1243
Lastpage
1245
Abstract
In this paper we analyze current flow in a long conductor which contains a step change in the conductivity. The cross section of the conductor is circular. An analytical method is used. The field variables are expressed in terms of Bessel and exponential functions. Expressions are derived for the current density and the incremental resistance introduced by the discontinuity. Numerical results are presented to show the dependence of the incremental resistance on the conductivity change. Qualitative expressions are provided for the incremental resistance
Keywords
Bessel functions; current density; eddy currents; Bessel functions; analytical method; circular cross section; current density; current flow; exponential functions; incremental resistance; long conductors; step conductivity change; Conductivity; Conductors; Current density; Eddy currents; Electrodes; Equations; Furnaces; Magnetic analysis; Temperature; Toroidal magnetic fields;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.706509
Filename
706509
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