What is the electrical resistance of wet earth (per any linear unit)?

Answer 1

Like the above answerer indicated, electrical resistance of the earth varies considerably, and can be affected by moisture, salinity, porosity, rocks and minerals that are present (especially graphite), salinity, and the list goes on.

At a constant voltage, the relationship between resistance and current are expressed mathematically by Ohm’s Law V=IR. Resistivity is a commonly used geophysical measurement used in mineral exploration, water exploration, archaeology, contaminated sites, and general sub-surface mapping. Resistivity can be measured on its own, or it can be determined as part of a more complex survey such as induced polarization or electromagnetics.

Resistivity is measured in ohm-meters, and can range from say 5 or 10 (eg, clay or graphite) to many thousands or tens of thousands of ohm-m (eg quartzite). Resistivity is the opposite of conductivity, so the higher the number, the more resistive the ground and the lower the number, the more conductive the ground. Look for a few hundred ohm-m to a few thousand ohm-m for typical wet soil. I am assuming by "earth" you mean soil.

Answer 2

It will vary considerably depending on the composition of the earth and the composition of the water (dissolved minerals, etc.). The best way to figure this is to get a volt-ohm meter and measure various combinations of earth and water. The distance between the meter's probes will also make a difference.

Answer 3

Zero ohms

Answer 4

I don't know about you but I'm still corn fused.

Answer 5

zero