Answer Posted / brian dsouza

In theory a neutral is a must to complete any electrical
circuit and an earth is a must to drive any leakage current
originating from the circuit to the ground and hence
protection to the human body.It is not advisable and should
not by any means, use earth as a replacement to neutral
which makes the circuit incomplete. If that would be the
case , electrical companies all over the world would use
only one conductor to supply the phase and they would use
our (huge) mother earth as the return path and complete the
circuit which is not so.

Thank you.

I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???

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