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Grade: 10 
        
please explain me that, if the length of a cylindrical wire increases then its area of cross section decreases , for example , if a wire’s length is made 2times its original length , then the area of cross section reduces to half . please explain me why and how this happens? please show mathematical calculations,if there isanything.
6 years ago

Answers : (1)

Arun Kumar
IIT Delhi
askIITians Faculty
256 Points 
							It happens because the volume is constant.

if 

then according to the formulae 

Arun Kumar
IIT Delhi
Askiitians Faculty
6 years ago
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