Question

Which colour is used for neutral wire?
A. Red
B. Black
C. Yellow
D. Green

Answer 1

Hint:A wire is a long cable type networks which consist of conductor materials which allows the electricity to pass through them easily, and this wire is used in almost every electrical circuits, networks, appliances, to make a continuous power supply in any system like in house cities and makes a vast network of electricity through wires. Here, we will discuss each type of wire and their code colours to identify them.

Complete answer:
Let us first discuss the earth wire, Earth wire is green in colour and it’s used for earth in which means any unwanted discharge current ever came in supply it will pass through this earth wire and don’t do any harm to the used electrical appliance.

Now, live wire which is in brown colour and its main purpose is to pass the current to the appliance which is in use, the main electric current is passed through the live wire from the power supply to the electrical appliance and, the neutral wire which is in black colour, is used to allow to pass the electric current from the appliance so, these different colour codes are used to identify each wires for their respective use. So, the neutral wire is of black colour.

Hence, the correct option is B.

Note: It should be remembered that, the combination of these three wires: live wire of brown colour, neutral wire of black colour and the earth wire of green colour makes a complete circuit. Also, in three plug sockets all three wires are used but in two wire sockets only live wire and neutral wire are used.