NCERT Exercise 12.1 — Q9 - Magnetic Effects of Electric Current
Question: What is the function of an earth wire? Why is it necessary to earth metallic appliances?
Answer: The earth wire provides a low-resistance conducting path for leakage current to the earth. It is necessary for metallic appliances so that if the live wire accidentally touches the metal body, the ...
Full step-by-step NCERT solution with diagrams on Something by Zero.