Question

why are metallic bodies of electric appliances connected to the earth wire​

Answer 1

earth is a good conductor of electricity and if any leaks are present it will go to the earth by using the earth wire,present and it will not give shock

Answer 2

Answer:

• The wire is connected to a metallic plate deep inside the earth
• in this way the metallic body of appliance is connected to the Earth which provides a low resistance conducting path for electric current
• hence, any leakage of current to the metallic body of appliance keeps the potential to that of earth
• the user might not get a severe electric shock on touching such an appliance
• electric wire has green insulation so that it can be identified.

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