1 files changed, 24 insertions, 0 deletions
diff --git a/2444/CH7/EX7.4/ex7_4.sce b/2444/CH7/EX7.4/ex7_4.sce
new file mode 100755
index 000000000..159ce2c04
--- /dev/null
+++ b/2444/CH7/EX7.4/ex7_4.sce
@@ -0,0 +1,24 @@
+// Exa 7.4
+clc;
+clear;
+close;
+format('v',5)
+// Given data
+L = 100;// in µH
+L = L * 10^-6;// in H
+C1 = 0.001;// in µF
+C1 = C1 * 10^-6;// in F
+C2 = 0.01;// in µF
+C2 = C2 * 10^-6;// in F
+f = (1/(2*%pi))*(sqrt( (1/(L*C1))+(1/(L*C2)) ));// in Hz
+f = f * 10^-3;// in kHz
+disp(f,"The opertaing frequency in kHz is");
+Beta = C1/C2;// feedback fraction
+disp(Beta,"The feed back fraction is");
+Amin = 1/Beta;// minimum gain to sustain oscillations
+disp(Amin,"The minimum gain to sustain oscillations is");
+// A = R_C/R_E ;
+R_C = 2.5;// in k ohm
+R_C = R_C * 10^3;// in ohm
+R_E = R_C/Amin;// in ohm
+disp(R_E,"The emitter resistance in ohm is");