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diff --git a/1223/CH10/EX10.9/Ex10_9.sce b/1223/CH10/EX10.9/Ex10_9.sce
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+clear;
+clc;
+//Example 10.9
+Idss1=2;
+Idss2=1;
+Vp1=-1.5;
+Vp2=Vp1;
+//lambda=y
+y1=0.05;
+y2=y1;
+V2=-5;
+Vds=1.5;
+Vsmin=Vds+V2;
+printf('\nminimum value of Vs=%.2f V\n',Vsmin)
+Io=Idss2*(1+y1*Vds);
+printf('\noutput current=%.2f mA\n',Io)
+Vgs1=(1-sqrt(Io/Idss1))*Vp1;
+printf('\ngate to source voltage of Q1=%.2f V\n',Vgs1)
+V1=Vgs1+Vsmin;
+printf('\nV1=%.2f V\n',V1)