L8-page3 - Resistivity Resistance includes length and area...

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3 Resistivity [] ohm A L R ρ = Resistance includes length and area We want resisitivity ρ [ ohm/m ] because - property of the material alone. - no geometry included length →↑ resistance area →↓ resistance Conductivity σ [siemens/m] or [mhos/m]: m mhos 1 ρ = σ It is the ability of the electrical charge to move through the material Electrical Conductivity of Geomaterials • Non-conductive minerals
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