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QUASI‐STATIC ELECTROMAGNETIC FIELDS OF A HORIZONTAL ELECTRICAL DIPOLE ON THE SURFACE OF A POLARIZABLE HALF‐SPACE *
Author(s) -
RATHOR B. S.
Publication year - 1978
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.1365-2478.1978.tb01584.x
Subject(s) - polarizability , polarization (electrochemistry) , electromagnetic field , dipole , induced polarization , physics , half space , parameter space , electric field , condensed matter physics , optics , electrical resistivity and conductivity , chemistry , geometry , quantum mechanics , mathematics , molecule
A bstract The expressions for quasi‐static electromagnetic fields of a horizontal electrical dipole placed on the surface of a polarizable half‐space have been derived for low and high values of induced polarization parameter and presented along with numerical results. It has been observed that the polarity of the mutual impedance function is negative for low values and positive for high values of the induced polarization parameter in the entire time domain, whereas the induced voltage function is positive for low values of induced polarization parameter and becomes negative for high values. In the case of low values of induced polarization parameter the transient electromagnetic field in the beginning increases with time, later on it starts to decay with time. The present study shows that the decay rate of electromagnetic field is highly dependent upon the induced polarization parameter. In the light of the present study the conductivity of the polarizable medium may be determined more accurately.