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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.
It happens because the volume is constant.if then according to the formulae Arun KumarIIT DelhiAskiitians Faculty
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