What is the potential of the live wire. Plzzz fast I have exams tomorrow.

thThe live wire carries current to the appliance at a high voltage. The neutral wirecompletes the circuit and carries current away from the appliance. The third wire, called the earth wire (green/yellow) is a safety wire and connects the metal case of the appliance to the earth. the current passing through the live wire and neutal wire is 220v.