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diff --git a/2702/CH2/EX2.4/Ex_2_4.sce b/2702/CH2/EX2.4/Ex_2_4.sce
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+// Exa 2.4
+clc;
+clear;
+close;
+// Given data 
+I_D= 0.4;// in mA
+I_D=I_D*10^-3;// in A
+Vt= 0.7;// in V
+V_SS= -2.5;// in V
+V_DD= 2.5;// in V
+unCox= 100;// in µA/V^2
+unCox= unCox*10^-6;// in A/V^2
+W= 32;// in m
+L= 1;// in m
+// V_GS-Vt= V_OV
+// I_D= unCox*W/(2*L)*(V_OV)^2
+V_OV= sqrt(I_D/(unCox*W/(2*L)));// in V
+V_GS= V_OV+Vt;// in V
+disp(V_GS,"The value of V_GS in volt is : ")
+V_G= 0;
+// Formula V_GS= V_G-V_S
+V_S= V_G-V_GS;// in V
+R_S= (V_S-V_SS)/I_D// in Ω
+disp(R_S*10^-3,"The value of R_S in kΩ is : ")
+V_D= 0.5;// in V
+R_D= (V_DD-V_D)/I_D;//in Ω
+disp(R_D*10^-3,"The value of R_D in kΩ is : ")