We use the theory of soil resistanceResistance of the soil means. Resistance to current flow in the soil. The path of the current soil is big, that means Despite the current flows through the soil will have poor electrical conductivity But current can travel in a much wider area in soil. May make the electrical resistance of soil is low. The soil has been used as a path of the stream to the charge transfer for a long time. Therefore, the electrical resistivity of soil, so it is important that must be taken into account. Needs to know how much soil resistivity Various methods have been developed to measure the physical effect of different soil. Especially the resistivity of the soil. The measurement of the soil surface can be made aware of the soil layer.
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