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+// Exa 6.14
+clc;
+clear;
+close;
+// Given data
+I_DSS= 4;// in mA
+I_DSS= I_DSS*10^-3;// in A
+V_P= -2;// in V
+V_DD= 10;// in V
+V_SS= V_DD;// in V
+V_GS2=0;// in V
+I_D= I_DSS*(1-V_GS2/V_P)^2;// in A
+// since I_D= I_DSS
+V_GS= 0;// in volt
+// Formula V_SS= V_DS-V_GS
+V_DS= V_SS-V_GS;// in volt
+disp(I_D*10^3,"The value of I_D in mA is :")
+disp(V_GS,"The value of V_GS in volt is : ")
+disp(V_DS,"The value of V_DS in volts is :")
+
+if V_DS > V_GS-V_P then
+ disp("The active region operation of the upper JFET is confirmed ")
+end