Discussion
Earth electrode resistance:
Answer: A
Earth electrode resistance is resistance of an earth electrode to earth.
It is the resistance between the electrode and the general mass of earth, made up mainly of the resistance of the soil immediately around the electrode. It determines how much current can flow to earth for a given voltage, and so how well the earthing protects people and equipment.
The resistance to a bus bar, a conductor or the neutral is the resistance of the earthing conductors and connections, not of the electrode to earth.
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