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Q1. | A resistance wire strain gauge has gauge factor 2. If stress is 100 mega newton/m^{2} and Young's modulus is 200 giga newton/ m^{2}, 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] |

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