For a strain gauge with a gauge factor of 2 and an unstrained resistance of 120 Ω, if itexperiences a strain of 1 𝜇𝜀, determine the change in gauge resistance?

If a strain gauge's factor were increased, the gauge would output a larger change in resistanceper unit of strain. Please discuss your answer.A) TrueB) False

The resistance of a 125 Ω strain gauge changes by 1 ohm for 4000 micro strain. The gauge factor is1.522.535

A cylindrical steel rod with modulus of elasticity 200 GPa and diameter 10 mm isloaded in tension with an axial load of 50 kN.a) If a strain gauge of gauge factor 2.115 and resistance of 120 Ω is mounted onthe bar in the axial direction, what is the change in resistance of the gauge fromthe unloaded state to the strained state?b) If the strain gauge is placed in one branch of a Wheatstone bridge (R1) with theother three legs having the same base resistance (R2=R3=R4=120 Ω), what isthe output voltage of the bridge (Vout) in the strained state as a function of theexcitation voltage?

A steel bar (shown in Fig. 1) has a cross-sectional area of 10−3 m2, Young’s modulusof 2 × 1011 Pa and Poisson’s ratio of 0.4. If the bar is subjected to a compressive forceof 105 N, find the corresponding longitudinal and transverse strains.b) Two strain gauges, each with an unstrained resistance of 120 Ω and a gauge factor of2.0, are bonded onto the steel bar (Fig. 1) so that one measures the longitudinal strainand the other the transverse strain. Determine the corresponding gauge resistancesfor the longitudinal and transverse strains

A known tensile force acts on a metal wire. The wire does not exceed its limit of proportionality.Which two measurements enable the strain of the wire to be calculated?A the unstretched length of the wire and the cross-sectional area of the wireB the unstretched length of the wire and the extension of the wireC the Young modulus of the metal and the extension of the wireD the Young modulus of the metal and the unstretched length of the wire