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

---
 2498/CH4/EX4.28/ex4_28.sce | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100755 2498/CH4/EX4.28/ex4_28.sce

(limited to '2498/CH4/EX4.28')

diff --git a/2498/CH4/EX4.28/ex4_28.sce b/2498/CH4/EX4.28/ex4_28.sce
new file mode 100755
index 000000000..504fd591a
--- /dev/null
+++ b/2498/CH4/EX4.28/ex4_28.sce
@@ -0,0 +1,25 @@
+// Exa 4.28
+format('v',6)
+clc;
+clear;
+close;
+// Given data
+Beta = 130;
+V_BE = 0.7;// in V
+V_CC = 18;// in V
+R1 = 510;// in k ohm
+R1 = R1 * 10^3;// in ohm
+R2 = 510;// in k ohm
+R2 = R2 * 10^3;// in ohm
+R_C = 9.1;// in k ohm
+R_C = R_C * 10^3;// in ohm
+R_E = 7.5*10^3;// in ohm
+Vth = V_CC*(R2/(R1+R2));// in V
+Rth = (R1*R2)/(R1+R2);// in ohm
+//Applying KVL in the input loop, Vth = (I_B*Rth)+V_BE+(I_E*R_E) or
+I_CQ = (Vth-V_BE)/( (Rth/Beta)+R_E+(R_E/Beta) );// in A         (On putting I_E = I_C+I_B and I_C = Beta*I_B)
+I_CQ= I_CQ*10^3;// in mA
+disp(I_CQ,"The value of I_CQ in mA is");
+// Applying KVL in the output loop, V_CC = (I_C*R_C) + V_CEQ + (I_E*R_E);
+V_CEQ = V_CC - (I_CQ*10^-3*( R_C+R_E+(R_E/Beta) ));// in V
+disp(V_CEQ,"The value of V_CEQ in V is");
-- 
cgit