Question

a wire whose cross sectional area is 2mm square is stretched by 0.1 mm by a certain load and it similar wire of triple the area of cross section is stretched by the same load then the elongation of the second wire would be
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Answer 1

A wire whose cross sectional area is 2mm square is stretched by 0.1 mm by a certain load and it similar wire of triple the area of cross section is stretched by the same load then the elongation of the second wire would be

A wire whose cross sectional area is 2mm square is stretched by 0.1 mm .

Load and it similar wire of triple the area of cross section is stretched by the same load then the elongation of the second wire would be :

Stress = F/A

F/A inversly proportional ∆L/L

So ,

∆L = A1/A2×04---------> 1

Given

∆L2 = 0.1/3

∆L2 = 0.333 mm