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

---
 2444/CH4/EX4.20/ex4_20.sce | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100755 2444/CH4/EX4.20/ex4_20.sce

(limited to '2444/CH4/EX4.20/ex4_20.sce')

diff --git a/2444/CH4/EX4.20/ex4_20.sce b/2444/CH4/EX4.20/ex4_20.sce
new file mode 100755
index 000000000..e9ce92cd4
--- /dev/null
+++ b/2444/CH4/EX4.20/ex4_20.sce
@@ -0,0 +1,21 @@
+// Exa 4.20
+clc;
+clear;
+close;
+format('v',6)
+// Given data
+R_S = 200;// in ohm
+R_L = 1200;// in ohm
+h_ib = 24;// in ohm
+h_rb = 4*10^-4;// unit less
+h_fb = -0.98;// unit less
+h_ob = 0.6;// in µA/V
+h_ob = h_ob * 10^-6;// in A/V
+Ai = -h_fb/(1+(h_ob*R_L));// unit less
+disp(Ai,"The current gain is");
+Ri = h_ib + (h_rb*Ai*R_L);// in ohm
+disp(Ri,"The input impedance in ohm is");
+Av = round((Ai*R_L)/Ri);// unit less
+disp(Av,"The Voltage gain is");
+Ais = (Ai*R_S)/(Ri+R_S);// unit less
+disp(Ais,"The overall current gain is");
-- 
cgit