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

---
 135/CH9/EX9.4/EX4.sce | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100755 135/CH9/EX9.4/EX4.sce

(limited to '135/CH9/EX9.4')

diff --git a/135/CH9/EX9.4/EX4.sce b/135/CH9/EX9.4/EX4.sce
new file mode 100755
index 000000000..fe95afdf9
--- /dev/null
+++ b/135/CH9/EX9.4/EX4.sce
@@ -0,0 +1,23 @@
+// Example 9.4: (i) Voltage gain, Input impedance, Output impedance
+//             (ii) Output voltage
+clc, clear
+gm=2.5; // in mili-Siemens
+// From Fig. 9.14(a)
+RG=3; // in Mega-ohms
+RD=2.2; // in kilo-ohms
+
+disp("Part (i)");
+AV1=-gm*RD; // Voltage gain of both individual stages
+AV=AV1^2; // Overall voltage gain
+disp(AV,"Voltage gain =");
+disp(RG,"Input impedance (MΩ) =");
+disp(RD,"Output impedance (kΩ) =");
+
+disp("Part (ii)");
+Vi=10; // in mili-volts
+RD_dash=RD*10/(RD+10); // Effective load of secong stage in kilo-ohms
+// Now the gain of second stage
+AV2=-gm*RD_dash;
+AV=AV1*AV2; // Overall voltage gain
+Vo=Vi*AV; // Output voltage in mili-volts
+disp(Vo,"Output voltage (mV) =");
\ No newline at end of file
-- 
cgit