Answer Posted / gajanan

actualy earth socket has large diameter as compared to
phase and neutral.

it is for the safty.

whenever abnormal condition occures, abnormal current
should be earthed quickly and for that resistance of path
should be minimun and

resitivity= R*l/A ;
resistivity inversly prportion to area:A

so when earth socket hole be large abnormal current goes to
zero without any accident.

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