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

Illustrative examples show that line source electrode interactions with a cylindrical anomaly serve as adequate qualitative models 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 be approximately the same. This is of benefit, for determination, and for sensing of various anomalies within the ground.