Dependence of the resistivity on orientation and size for the rectangular sample made from the conductive rectangular cell net

Dependence of the resistivity on angle and size for the plane rectangular sample made from the conductive rectangular cell net is considered. It is shown that when the number of the net nodes inside the sample increases and when the ratio of the boundary nodes to the inside nodes decreases the resistivity tends to a value that can be considered as bulk value for the considered direction. It is found that while the rectangular net is geometrically symmetric for 180deg rotation the sample resistivity is symmetric for 90deg rotation.