Science, asked by varun248, 1 year ago

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Answered by Rainbowcat203
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Pg 245 in the lesson sources of energy...thermal powe plant's..
Ans pg 237
Answered by Gourypriya
1
Earthing: Electric appliances like heaters ,toasters, etc are frequently touched by us with bare hands .If per chance,the insulation on live wire melt then live wire may touch the metallic case of appliance .In that case current pass through the metal casing and if we touch this casing with bare hands we will receive a severe shock.To avoid such accidents all electric appliances must be earthed .For that one end of copper wire is connected with metal casing and the other end is connected to copper plate which buried deep inside earth. This system is known as earthing.



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