Question

Why most all electrical home appliances like refrigerator ,toaster etc.,are provided with a wire having green insulation?

Answer 1

Answer:

Earth wire is the insulated green coloured copper wire which is connected to a metal plate deep inside the earth near the house. It is used as a safety measure. It is kept at zero potential by connecting it to the ground, thus, providing a low-resistance conducting path for the current

Explanation: