What is the function of an earth wire? Why is it necessary to earth metallic appliances?

 

Answer

 

The main function of the earth wire is to conduct the excess or the leaking current  from the electrical appliance to the ground.

 

It is necessary to earth metallic bodies because it protects us from getting an electric shock by  transferring the current to the earth

Because, if the metallic bodies of electric appliances are earthed, then the current would flow directly into the earth rather than entering our body.

Hence, we won't get an electric shock.

  1. Class 10
  2. Chapter 13 Class 10 - Magnetic Effects of Electric Current

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.