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+//Example 7.22 // sensitivity
+clc;
+clear;
+close;
+//given data :
+d=0.06; // in mm
+Rg=120; // in ohm
+Gf=2; // gauge factor
+v=6; // im volts
+E=200; // GN/m^2
+mu=0.3; // poisson's ratio
+l=1000; // consider a load applied in N
+Si=l/((%pi/4)*(d)^2)
+e=Si/(E*10^9);
+R=Gf*e;
+dVo=2*(1+mu)*R*(v/4)*10^-6;
+S=dVo/(l*1000);
+disp(S*10^18,"the sesitivity,S(microvolt/kN) = ")