Title :
Diffusion of Electric Current Into Rods, Tubes, and Flat Surfaces
Author_Institution :
Assistant director, Armour Research Foundation, Chicago, Ill.
Abstract :
Electric current density penetrates or ``soaks´´ into an electric conductor starting from the surface during current transients in a manner physically and mathematically analogous to thermal diffusion in transient heat flow. This useful concept is used to explain physically and evaluate numerically transient resistance and inductance of conductors subjected to rectangular current wave impulses.
Keywords :
Circuits; Conductors; Copper; Current; Electric resistance; Skin effect; Surface resistance; Thermal conductivity; Thermal resistance; Voltage;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1947.5059604
