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A strain gauge with a gauge factor of 3.3 consists of a 50cm wire with a...

  1. A strain gauge with a gauge factor of 3.3 consists of a 50cm wire with a 20µm diameter and a 300Ω resistance . When complete length of the wire is strained positively the resistance change is measured as 0.6 Ω . Calculate the change in wire length and diameter
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