Question

The potential of a neutral wire is
(A). 0V
(B). 300V
(C). 220V
(D). 2000V

Answer 1

There are 3 different types of wires connected in our house. Those are live, neutral and earth also known as ground. Neutral wires are the wires that carry current to the source of the power. It basically acts as a path to return energy. When the circuit is balanced, these wires carry current. But when the circuit is not properly balanced, these wires carry little current.

Complete step-by-step answer :
Two insulated wires are supplied from the electric poles near our house to our house. These two insulated wires are L-wire and N-wire. N-wire is the neutral wire while the L-wire is the live wire. Neutral wires are basically current-carrying conductors. They carry current back to the source. This is done to regulate and control voltage. Live wires are the wires coming out from the output terminals of a kWh meter connected to our house. These live wires have another fuse in it called the main fuse. Earth wires or ground wires are the wires which carry faulty currents due to abnormality in power. The potential of neutral wire is 0V while that of a live wire is 220V.
Hence, the correct answer is option A i.e. 0V.

Note : Earth wires are directly connected to the ground. Hence, they have zero potential. Thus, live wires are used. A fuse wire is connected with a live wire to protect the circuit from large amounts of control flow from the appliances as it can cause damage to the circuit. Live wires are brown in colour, while neutral wires are blue in colour. Earth wires are yellow and green in colour.