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+//chapter 11
+//example 11.3
+//page 320
+clear all;
+clc ;
+//given
+Rl=120;//load resistance in kohm
+Vdd=24;//supply voltage V
+Id=1.5;//min drain current ma
+Vgs=5.5;//from transfer characteristics(V)
+Vp=8;//
+Vdsmin=Vp+1-Vgs;
+Vrd=(Vdd-Vdsmin)/2;
+Vs=Vrd;
+Rd=Vrd/Id;
+Rs=Rd;
+printf("\nRd=Rs=%.2f kohm,use standard value 6.8 kohm ",Rd);
+//Rd<<Rl
+Vg=Vs-Vgs;
+R2=1;//Mohm(assuming)
+VR2=Vg;
+VR1=Vdd-Vg;
+R1=(VR1*R2)/VR2;
+printf("\nR1=%.2f Mohm,use standard value 4.7 Mohm\nR2=1 Mohm",R1);
+
+