Answer / nithi

Earthing & grounding are different.
earthing:if the outer case of the machine (electrically
isolated) is connected with the ground for the safety of
operator ,then it is called as earthing.

grounding: if the live point(neutral point-electrically
connected) of the electrical system is connected with the
ground ,then it is called as grounding.

Answer / k.prakashchandra

Ground may be taken as enclosure or body also.In
automobiles the -ve is connected to the body and it is
termed as grounded.

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