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+// Exa 2.19
+format('v',5);
+clc;
+clear; 
+close;
+// Given data 
+Vt= 2;// in V
+K1WbyL= 1;// in mA/V^2
+K1WbyL= K1WbyL*10^-3;//in mA/V^2
+I_D= 10;//in µA
+I_D= I_D*10^-6;//in A
+V_DD= 10;// in V
+R_D= 4;// in kΩ
+R_D= R_D*10^3;// in Ω
+
+// Formul I_D= 1/2*K1WbyL*(V_GS-Vt)^2
+V_GS= sqrt(2*I_D/K1WbyL)+Vt;// in V
+V1= -V_GS;// in V
+// Part (b)
+I_D= 2;// in mA
+I_D= I_D*10^-3;// in A
+V2= V_DD-I_D*R_D;//in V
+// Formul I_D= 1/2*K1WbyL*(V_GS-Vt)^2
+V_GS= sqrt(2*I_D/K1WbyL)+Vt;// in V
+V3= -V_GS;// in V
+// Part (c)
+I_D= 1;// in mA
+I_D= I_D*10^-3;// in A
+// Formul I_D= 1/2*K1WbyL*(V_GS-Vt)^2
+V_GS= sqrt(2*I_D/K1WbyL)+Vt;// in V
+V4= V_GS;// in V
+// Part (d)
+I_D= 2;// in mA
+R_D= 2.5;// in kΩ
+R_D= R_D*10^3;// in Ω
+V_SS= 10;// in V
+I_D= I_D*10^-3;// in A
+V_GS= sqrt(2*I_D/K1WbyL)+Vt;// in V
+V5= -V_SS+I_D*R_D;// in V
+disp(V1,"The value of V1 in volts is : ")
+disp(V2,"The value of V2 in volts is : ")
+disp(V3,"The value of V3 in volts is : ")
+disp(V4,"The value of V4 in volts is : ")
+disp(V5,"The value of V5 in volts is : ")