soil resistivity

hi all, please help me to undrestand the equivalent circuit that
applied by wenner method to meaure the soil resistivity.
Reply to
mansoor
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Too little info
Reply to
Setanta
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The Wenner method is shown in
formatting link
circuit is simple- the current flows between the outer probes and the voltage is independently measured between the inner probes. This gives an "average" resistance V/I which can be related to the resistivity by the equation shown.
I-->O ...........o............o............O -->I ||
Reply to
Don Kelly

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