Answer / hardik

purpose of earthing is becoz of protection of equipment if
any abnormality will happens in equipment like earth fault
so e/f c/n passed through the earthing and maintain the vtg
leavel of bus and value of earth is less than 1 ohm.

Answer / rose

Earthing :- If any leakage current in ckt this current
will be grounded.that is a protective device.

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