1 files changed, 21 insertions, 0 deletions
diff --git a/1658/CH19/EX19.4/Ex19_4.sce b/1658/CH19/EX19.4/Ex19_4.sce
new file mode 100755
index 000000000..e5f31b263
--- /dev/null
+++ b/1658/CH19/EX19.4/Ex19_4.sce
@@ -0,0 +1,21 @@
+clc;
+//e.g 19.4
+Vcc=12;
+Rc=10*10**3;
+Re=1*10**3;
+Rb=500*10**3;
+beta=50;
+Ic=Vcc/(Re+(Rb/beta));
+disp('mA',Ic*10**3,"Ic=");
+Ie=Ic;
+re=25/(Ie*10**3);
+disp('ohm',re*1,"re=");
+Ri=beta*re;
+disp('ohm',Ri*1,"Ri=");
+Ris=(Rb*Ri)/(Rb+Ri);
+disp('ohm',Ris*1,"Ris=");
+R0=Rc;
+Av=R0/re;
+disp(Av);
+Av=Rc/Re;
+disp(Av);