From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 2825/CH15/EX15.5/Ex15_5.sce | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100755 2825/CH15/EX15.5/Ex15_5.sce

(limited to '2825/CH15/EX15.5')

diff --git a/2825/CH15/EX15.5/Ex15_5.sce b/2825/CH15/EX15.5/Ex15_5.sce
new file mode 100755
index 000000000..7f5b43b61
--- /dev/null
+++ b/2825/CH15/EX15.5/Ex15_5.sce
@@ -0,0 +1,29 @@
+//Ex15_5 Pg-775
+clc
+
+disp("The standard equation of AM wave is")
+disp(" e = Ec*(1+m*sin(omega_m*t)*sin(omega_c*t)) -->eqn 1")
+disp("Given the equation")
+disp(" e = 20*(1+0.7*sin(6280*t)*sin(628000*t))   --eqn 2")
+disp("Comparing eqn 1 and eqn 2 one obtains")
+disp("(1) Modulation factor, m = 0.7")
+m=0.7 //modulation factor
+disp("(2) Carrier Amplitude, Ec = 20 V")
+Ec=20 //carrier wave amplitude in V
+disp("(3) omega_m = 6280")
+omega_m=6280 //modulating frequency
+Fm=omega_m/(2*%pi) //signal frequency
+printf("    Signal frequency = %.0f kHz \n\n",Fm*1e-3)
+
+omega_c=628000 //carrier frequency in Hz
+Fc=omega_c/(2*%pi) 
+printf("(4) Signal frequency = %.0f kHz \n\n",Fc*1e-3)
+
+Emax=Ec+m*Ec //minimum amplitude of wave
+printf("(5) Emax = %.0f V \n\n",Emax)
+
+Emin=Ec-m*Ec //minimum amplitude of wave
+printf("(5) Emin = %.0f V\n\n",Emin)
+
+BW=2*Fm //Bandwidth
+printf("(6) BW = %.0f kHZ",BW*1e-3)
-- 
cgit