What would be the likely values for resistivity be for dry soil, moist soil, and the...

What would be the likely values for resistivity be for dry soil, moist soil, and the area between the water table?

Expert Solution

Hey there!

For anything to conduct, the material should have some amount of conducting electrons in it. In the case of dry sand , you would find no conductivity. There would be no conduction since electricity doesn't pass through them. Hence the resistivity of dry soil is high. (about 100 ohm cm)

When it comes to wet soil, there is found to be some amount of water mixed along. This means there would be conductivity more than that of the dry soil through the free ions present in water. This otherwise means that the resistivity is less than that of the dry soil. (7 -35 ohm cm)

When it comes to water table, there is plenty of water with less soil, which means there would be more ions for free conduction of electricity when passed through them. Hence the resistivity of the water table is very much low when compared to that of the other two (0.1 - 3 Ohms cm).

I hope the explanation helps... Feel free to comment and discuss further... Cheers :)

genius_generous answered 2 years ago

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