1 files changed, 26 insertions, 0 deletions
diff --git a/3682/CH7/EX7.3/Ex7_3.sce b/3682/CH7/EX7.3/Ex7_3.sce
new file mode 100644
index 000000000..18dc7fcb9
--- /dev/null
+++ b/3682/CH7/EX7.3/Ex7_3.sce
@@ -0,0 +1,26 @@
+// Exa 7.3
+
+clc;
+clear;
+
+// Given data
+
+Attn=40; // Attenuation in dB
+x=2; // x= ratio of W to Wh
+
+// Solution
+
+printf(' Using equation 7.26,\n');
+
+// 20*log(H(jw)/A0)=-40; // -ve since it is attenuation
+// gives
+// H(jw)/A0 = 10^-2 = 0.01
+// so
+// (0.01)^2 = 1/(1+2^(2*n));
+// or 2^2n = 10^4  - 1;
+// solving for n, we get 
+
+n=log(10^(4) -1)/(2*log(2));
+printf('  The calculated value of n = %.2f. \n',n);
+printf('  Since order of filter must be an integer so, n = %d. \n',round(n));
+