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diff --git a/3682/CH5/EX5.4/Ex5_4.sce b/3682/CH5/EX5.4/Ex5_4.sce
new file mode 100644
index 000000000..3f7828a3b
--- /dev/null
+++ b/3682/CH5/EX5.4/Ex5_4.sce
@@ -0,0 +1,25 @@
+// Exa 5.4
+
+clc;
+clear;
+
+// Given data
+
+// Phase shift oscillator as given in Fig. 5.15
+
+F=100; // Oscillation frequency(Hz)
+
+
+// Solution
+
+printf(' Let C=0.1 microFarads, then from Eq. (5.25) we can get value of R. \n ');
+R = 1/(sqrt(6)*2*%pi*10^-7*F);
+
+printf(' The value of R as calculated = %.2f kΩ. \n ',R/1000);
+
+printf(' To prevent overloading of the amplifier by RC network, R1 <= 10*R. \n');
+R1=10*R;
+printf('  Therefore R1 = %d kΩ. \n ',round(R1/1000));
+// Since Rf = 29*R1;
+Rf= 29*round(R1/1000);  // kΩ
+printf(' Since Rf = 29*R1, therefore value of Rf = %d kΩ. \n ',Rf);