Answer Posted / chetan jain

The size of hole of the earth point in the plug point
bigger than the phase and neutral because , the earth point
is dirctly connected to the body of the electrical
equipment it makes the circuit completed before the phase
and neutral point's are connected, if there is a short
circuit happens it dirctly connects the equipment and
protects man for unwanted shock , or we can also say that
the earth point gives the path to the current to discharge.

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