Sarthaks Test
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A bar 1.60 m long contracts axially by 0.1 mm when a compressive load is applied to it. Determine the strain and the percentage strain.

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Strain ε = contraction/original length 

= 0.1 mm/1.60 x 103 mm

= 0.1/1600 = 0.0000625

Percentage strain = 0.0000625×100 

= 0.00625%

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