(b) Which two wires mentioned in part (a) are at the same potential?
(c) In which of the wire stated in part (a) the switch is connected?
Solution:
(a) The three connecting wires used in residential circuits are a live wire, a neutral wire, and an earth wire.
(b) The potential of the neutral and earth wires is the same.
(c) The live wire is the wire that connects the switch to the ground.