A resistive strain gauge with a gauge factor of G = 2.0 is cemented on a rectangular steel bar with the elastic modulus E = 87 GPa. The width of the steel bar is 8 cm and its thickness is of 1 cm. The strain gauge has a resistance of 122 Ω when unloaded. If an axial force of 39 kN is applied on the steel bar, determine the change in the resistance of the strain gauge, ∆R, in mΩ. A resistive strain gauge with a gauge factor of G = 2.0 is cemented on a rectangular steel bar with the elastic modulus E = 87 GPa. The width of the steel bar is 8 cm and itsthickness is of 1 cm. The strain gauge has a resistance of 122 Q when unloaded. If an axial force of 39 kN is applied on the steel bar, determine the change in the resistanceof the strain gauge, AR, in mQ.

Given parameters are: Gauge Factor, G=2.0 Elastic Modulus, E=87GPa, Width of steel bar,w=8cm The…

Answered: A resistive strain gauge with a gauge…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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A resistive strain gauge with a gauge factor of G = 2.0 is cemented on a rectangular steel bar with the elastic modulus E = 87 GPa. The width of the steel bar is 8 cm and its thickness is of 1 cm. The strain gauge has a resistance of 122 Ω when unloaded. If an axial force of 39 kN is applied on the steel bar, determine the change in the resistance of the strain gauge, ∆R, in mΩ.

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