Question

describe the different types of wires and their colours used in an electric circuit

Answer 1

Dear Student ,

We use

1. Live wire, neutral wire, earthing wire.
2. Earth wire is used for safety measure especially for those appliances that have metallic body.
3. Green colour
We can receive an electric shock on touching a running appliance. This is caused by the leakage of current from the appliance. Earthing provides a safety measure against the electric shock, caused by the leakage of current. That's why a third wire (Earth wire) is used in domestic wiring. Sometimes, the insulation of a live wire burns due to excessive heating. A naked live wire may lead to an electrical shock. To protect the appliance against an electrical shock, its metallic case is connected with the Earth wire.

Regards