Question

Name three insulated wires that are used as electric cables in our homes. Specify their colours also.

Answer 1

Three types of wire used are:

1. Wire with red insulation cover, is called live wire (positive).
2. Wire with black insulation, is called neutral wire (negative).
3. The earth wire, which has insulation of green colour, is usually connected to a metal plate deep in the earth near the house.
4. Earth wire is used as safety measures.