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A resistance wire strain gauge has gauge factor 2. If stress is 100 mega newton/m2 and Young's modulus is 200 giga newton/ m2, the percentage change in gauge resistance due to stress is | |
A. | 0.1 [Correct Answer] |
B. | 0.2 [Wrong Answer] |
C. | 0.4 [Wrong Answer] |
D. | 0.5 [Wrong Answer] |