Earth Resistance is equal to:

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Earth resistance =

\frac{V}{I}

Earth resistance=

\frac{I}{V}

Earth resistance = I

None of the above

answer is A.

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Detailed Solution

Concept: An object's resistance to the flow of electrical current is measured by its electrical resistance. Resistance and conductance are widespread rather than intense properties, hence the size and form of an item commonly affects them.
The resistance provided by the earth's electrode to the flow of electricity into the ground is known as earth resistance. The earth resistance is defined mathematically as:
Ground resistance
e =

\frac{V}{I}

Where V is a voltage spike that is measured in voltage and I stands for the current injected during the earth resistance.
The earth's resistance, which rises with depth, is influenced by temperature. Ground resistivity is hardly affected by temperatures above zero degrees Celsius, but with temperatures below 0 degrees Celsius, the water in the soil freezes, increasing the resistivity. The composition of numerous soluble salts has an impact on the earth's resistivity.
The resistivity of the soil changes throughout time. More moisture and less resistance are present in the lowest layer of soil. In the case of rocky, coarse dirt in the lowest layer, the resistivity increases with depth. The resistance area or potential area of the ground refers to the area surrounding the earth where the electrode is energised. The earth electrode pumps fault current out of the electrode in all directions.
Thus, the appropriate response choice (1) .

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