(i) What is the function of earth wire in electrical instruments? (ii) Explain what is short circuiting in an electric supply.

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asked Mar 16, 2018 in Science by paayal (26,720 points) 4 6 54

(i) What is the function of earth wire in electrical instruments? 

(ii) Explain what is short circuiting in an electric supply. 

(iii) What is the usual current rating of the fuse wire in the line to feed 

(a) lights and fans? 

(b) appliances of 2kW or more power?

1 Answer

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answered Mar 16, 2018 by sanjaydas (61,430 points) 5 7 7
selected Mar 20, 2018 by Vikash Kumar
 
Best answer

(i) Earth wire in electrical instruments saves us from all possible electric shocks. 

(ii) Accidently, when live and neutral wires of an electric circuit comes into direct contact, it is called short circuiting.

 (iii) (a) 5A (b) 15A

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