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diff --git a/1223/CH10/EX10.2/Ex10_2.sce b/1223/CH10/EX10.2/Ex10_2.sce
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+clear;
+clc;
+//Example 10.2
+V1=5;
+V2=-5;
+R1=9.3;
+b=50;
+Vbe=0.7;
+Va=80;
+Iref=(V1-Vbe-V2)/R1;
+printf('\nreference current =%.3fmA\n',Iref)
+Io=Iref/(1+2/b);
+printf('\noutput current=%.2fmA\n',Io)
+ro=Va/Io;
+printf('\nsmall signal output resistance=%.2f KOhm\n',ro)
+//dIo=dVce2/ro
+Vce2=0.7;
+dIo=(V1-Vce2)/ro;
+printf('\nchange in load current=%.3f mA\n',dIo)
+x=dIo/Io;
+x=x*100;
+printf('\npercent change in output current=%.2f \n',x)