• A strain gauge with GF = 2.03 and R=3500 is used in the Vs bridge of Figure on the right. The bridge resistors are R1=R2=350 Q, and the dummy gauge has R=350 2. If a tensile strain of 1450μm/mis applied, find the bridge offset voltage if Vs=10V. Find the relation between bridge off-null voltage and strain. How much voltage results from a strain of 1 micro? R1 RD (a) Active gauge RA R2 RA Dummy gauge RD Stressed member C 33