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THE FIELD OF A D. C. ELEMENT, APPLIED TO GONDUCTIVELY ENERGIZED PENCILFORMED ORE BODIES
Author(s) -
OVERHOLT K. J.
Publication year - 1959
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1959.tb01454.x
Subject(s) - electrode , magnetic field , conductivity , electrical resistivity and conductivity , current (fluid) , line (geometry) , geology , voltage , electrical engineering , geometry , physics , engineering , mathematics , quantum mechanics
A bstract The electric and magnetic field of a direct‐current element, embedded in a space consisting of two halfspaces differing in conductivity and permeability, is given in a form suitable for integration along a cable. From these formulae is obtained the field when one end of a D.C. cable is grounded in a highly conducting, pencilformed ore body, considered as a line electrode with uniform current leakage. Numerical examples are given for a horizontal line electrode. The formulae should be useful as a first approximation to the A.C. case. The validity of this is shortly discussed.