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diff --git a/1223/CH3/EX3.3/Ex3_3.sce b/1223/CH3/EX3.3/Ex3_3.sce
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+clear;
+clc;
+//Example 3.3
+Vbb=4;//(V)
+Rb=220//(KOhm);
+Rc=2;//(KOhm)
+Vcc=10;//(V)
+Vbe=0.7;//(V)
+b=200;
+//from fig.3.19(b)
+Ib=(Vbb-Vbe)/Rb;
+printf('\nbase current=%.3f mA\n',Ib)
+Ic=b*Ib;
+printf('\ncollector current=%.2f mA\n',Ic)
+Ie=(1+b)*Ib;
+printf('\nemitter current=%.2f mA\n',Ie)
+Vce=Vcc-Ic*Rc;
+printf('\ncollector emitter voltage=%.1f V\n',Vce)