The electromagnetic response of an inhomogeneous conducting sphere (having radial conductivity distribution) embedded in an infinite homogeneous medium is investigated. The effect of linear conductivity variation and magnetic contrast between the 2 media is discussed in detail and relevant curves are presented. Analytical results are further extended to a more general situation in which this sphere is located in a half-space and the influence of air-earth boundary is calculated. These results may be applied to geoelectrical interpretation.

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