Q.

Is it true that air present in wool makes it a bad conductor of electricity?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
Wool contains a lot of air in it. Air is an insulator of heat and being so it makes the wool a bad conductor of heat too. Due to the air holding capacity of wool the heat of the body of the wearer of the wool doesn’t escape and the wearer feels warm.
 
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