Mining Engineering > GATE 2026 > Rock Mechanics - Strain Gauge Testing
In a uniaxial compressive strength test, a 120 Ω strain gauge of gauge factor 2.0 is pasted on the rock sample of length 110 mm as shown. At the end of the test, the change in resistance of the strain gauge is 0.5 Ω. The longitudinal deformation of the sample, in mm, is _______________. (rounded off to two decimal places)
Correct : 0.23
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