Question

What is the function of earth wire in electrical instruments ? Why is it necessary to earth the metallic electric appliances.

Answer 1

Earth wires are the important components of the electrical circuits. Following are their primary functions:

1. Earth wire prevents live wire from overloading
2. Earth wire absorbs the excess electrons and channelize them to flow beneath the ground
3. It protects the electrical appliances from damages
4. It absorbs excess electricity from appliances