Answer / pillay

Ground Earthing is provided entirely for safety. Its purpose
is to ensure the equipment is safe even when there is a
leakage of voltages and current and weather the protection cct
works or not.This saves lives maybe yours or mine.So good
ground earth is very very important.
Neutral earth is provided to ensure the neutral is maintained
at zero potential. If the neutral is not maintained at zero
potential the voltages across the phases will vary according
to the current carried by the individual phases thus creating
instability in the system.

Answer / dhavalb

neutral means it is zero potential which provide return path of current.

earthing means the wire is earth in ground.when we experienced
shock the current passes through our body to earthing wire because of loe resistance than ground.

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