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diff --git a/3515/CH2/EX2.5/Ex_2_5.sce b/3515/CH2/EX2.5/Ex_2_5.sce
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+// Exa 2.5
+format('v',7);
+clc;
+clear;
+close;
+// Given data 
+V_DD= 3;// in V
+I_D= 80;// in µA
+I_D=I_D*10^-6;// in A
+Vt= 0.6;// in V
+unCox= 200;// in µA/V^2
+unCox= unCox*10^-6;// in A/V^2
+L= 0.8;//in µm
+L= L*10^-6;// in m
+W=4;// in µm
+W=W*10^-6;// 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
+V_D= 1;// in V
+V_G= V_D;// in V
+R= (V_DD-V_D)/I_D;// in Ω
+R= R*10^-3;// in kΩ
+disp(R,"The value of R in kΩ is : ")