Electrical line source and point source interactions with anomalies in the ground

Illustrative examples show that line source electrode interactions with a cylindrical anomaly can serve as an adequate qualitative model for point source electrode interactions with cylindrical and spherical anomalies. Subject to certain restrictions, the quantitative results for point and line source interactions with cylindrical anomalies can even be approximately the same. This is of benefit, due to the simplicity of the line source mathematical representation, in being able to determine the utility of means for sensing various anomalies within the ground.