Which of the following is NOT listed as a factor influencing soil resistivity?

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Multiple Choice

Which of the following is NOT listed as a factor influencing soil resistivity?

Soil resistivity is controlled by how easily electricity can move through the soil, which depends on the amount of ions available in the pore water and the soil’s mineral makeup. More moisture provides more conductive pathways, so increasing moisture lowers resistivity. Dissolved salts raise the ionic content of the pore water, further lowering resistivity by enhancing conductivity. The soil’s composition—types of minerals, particle sizes, and how tightly the soil is packed—also shapes how easily current can travel through the ground. Wind speed does not directly alter these electrical pathways in a way used for design or testing, so it’s not considered a factor that influences soil resistivity.

Soil resistivity is controlled by how easily electricity can move through the soil, which depends on the amount of ions available in the pore water and the soil’s mineral makeup. More moisture provides more conductive pathways, so increasing moisture lowers resistivity. Dissolved salts raise the ionic content of the pore water, further lowering resistivity by enhancing conductivity. The soil’s composition—types of minerals, particle sizes, and how tightly the soil is packed—also shapes how easily current can travel through the ground. Wind speed does not directly alter these electrical pathways in a way used for design or testing, so it’s not considered a factor that influences soil resistivity.

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