NCERT Solution Class X Science Magnetic Effects of Electric Current Question 18 (Ex 13.9)

Question 18:

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

appliances?

Answer:

The metallic body of electric appliances is connected to the earth by means of

earth wire so that any leakage of electric current is transferred to the ground.

This prevents any electric shock to the user. That is why earthing of the

electrical appliances is necessary.

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