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+// Exa 4.10
+clc;
+clear;
+close;
+// Given data  
+delta_RDbyRD= 2/100;
+delta_WLbyWL= 2/100;
+delta_Vt= 2;//in mV
+delta_Vt= delta_Vt*10^-3;// in V
+//(From Exa 4.4)
+V_A= 20;// in V
+R_D= 5;// in kΩ
+R_D= R_D*10^3;// in Ω
+I= 0.8;// in mA
+I=I*10^-3;// in A
+i_D= I/2;// in A
+unCox= 0.2;// mA/V^2
+unCox= unCox*10^-3;// in A/V^2
+WbyL= 100;
+// Formula i_D= 1/2*unCox*WbyL*V_OV^2
+V_OV= sqrt(2*i_D/(unCox*WbyL));// in V
+V_OS1= V_OV/2*delta_RDbyRD;// in V
+
+// V_OS due to W/L ratio
+V_OS2= V_OV/2*delta_WLbyWL;// in V
+
+// V_OS due to threshold voltage
+V_OS3= delta_Vt;// in V
+// Total offset voltage
+V_OS= sqrt(V_OS1^2+V_OS2^2+V_OS3^2);// in V
+V_OS= V_OS*10^3;// in mV
+disp(V_OS,"Total offset voltage in mV is : ")