1.

Name the three types of wirea used in household drcuits. Out of these three which wire ls used as a safety measure especially for those appliances that have metallic body. State the colour of insulation used for this wire . How it ensures the safety of the user ?

Answer»

SOLUTION :(i) Live WIRE
(ii) Neutral wire
(iii) Earth wire
Earth wire, colour of insulation - green
The metallic BODY CONNECTED to the earth wire KEEPS its potential to that of the earth.s zeropotential and if there is any leakage , the user does not get any kind of electric shock.


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