Question

The value of resistance of an earthing electrode depends upon

Answer 1

Again the resistivity of the soil depends upon the following factors, ... In that case, the earth resistance of the electrode remains ... if the resistivity is increased above its desired value

Answer 2

The value of resistance of an earthing electrode depends upon

1. Soil type- soils possessing more rocks and gravels tends to have high resistivity.
2. Moisture content- areas with relatively low moisture content like that of desert area or dry regions are highly resistive.
3. Temperature-  places with low temperature like frozen grounds are said to posses more resistance than  warm ground.
4. Mineral content- lands containing rocks with more minerals contents have more resistance. for example - Igneous rocks are more resistive than ore minerals