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+// Exa 2.18
+format('v',7);
+clc;
+clear; 
+close;
+// Given data 
+Vt= 1;// in V
+unCox= 120;// in µA/V^2
+unCox= unCox*10^-6;// in A/V^2
+L1=1;// in µm
+L2=L1;// in µm
+I_D= 120;//in µA
+I_D= I_D*10^-6;//in A
+V_GS1= 1.5;//in V
+V_G2= 3.5;// in V
+V_S2= 1.5;// in V
+V_DD= 5;// in V
+V_D2= 3.5;// in V
+// Formul I_D= 1/2*unCox*W/L*(V_GS1-Vt)^2
+W1= 2*I_D*L1/(unCox*(V_GS1-Vt)^2);// in µm
+disp(W1,"The value of W1 in µm is : ")
+V_GS2= V_G2-V_S2;//in V
+// Formul I_D= 1/2*unCox*W/L*(V_GS1-Vt)^2
+W2= 2*I_D*L2/(unCox*(V_GS2-Vt)^2);// in µm
+disp(W2,"The value of W2 in µm is : ")
+R= (V_DD-V_D2)/I_D;// in Ω
+R= R*10^-3;// in kΩ
+disp(R,"Resistance in kΩ");