Answer / ullas

grounding:
this means keeping that particular terminal as common point.
example-1.
consider the case in electronic circuitry(as with a music
system) where dc supply is used, the negative terminal is
usually grounded to other metallic parts of that system.
example-2.
take any circuitry where a number of different voltages are
used, 0-12v, 0-24v, 0-110v, 0-230v etc. here all the ov
terminals are grounded and taken it as common.
earthing:
this means making the common point to earth.the potential
of this point shall be Zero volt.
example-1.
transformer neutral is earthed to keep the potential as
zero.
example-2
equipments are earthed for better safety of living beings.

Answer / gunasekaran

earthing means zero potential grounding means which
equipment we want keep the zero potential it is connected
to earth.

Answer / query

The term ground and grounding are used in US electrical
engineering to represent electrical equipment that is
securely bonded to the ground (i.e., that on which we
stand) for safety reasons. In the UK the equivalent terms
are earth and earthing.

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