From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 3754/CH24/EX24.4/24_4.sce | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 3754/CH24/EX24.4/24_4.sce

(limited to '3754/CH24/EX24.4')

diff --git a/3754/CH24/EX24.4/24_4.sce b/3754/CH24/EX24.4/24_4.sce
new file mode 100644
index 000000000..8256ac632
--- /dev/null
+++ b/3754/CH24/EX24.4/24_4.sce
@@ -0,0 +1,23 @@
+clear//
+
+//Variables
+
+VCC = 12.0                       //Source voltage (in volts)
+RC = 10.0 * 10**3                //Collector resistance (in ohm)
+RE = 1.0 * 10**3                 //Emitter resistance (in ohm)
+RB = 500.0 * 10**3               //Base resistance (in ohm)
+beta = 50.0                      //Common emitter current gain
+
+//Calculation
+
+IC = VCC / (RE + RB/beta)        //Collector current (in Ampere)
+IE = IC                          //Emitter current (in Ampere)
+r1e = 25.0 / IE * 10**-3         //a.c. resistance of emitter diode (in ohm)
+Ri = beta * (r1e)                //Input resistance looking directly into the base (in ohm)
+Ris = RB * Ri / (RB + Ri)        //Input resistance of the stage (in ohm)
+Av = RC / r1e                    //Voltage gain 
+AV1 = RC / RE                    //New voltage gain  
+
+//Result
+
+printf("\n Input resistance looking into the base is  %0.0f  ohm.\nInput resistance of the stage is  %0.1f  kilo-ohm.\nVoltage gain is  %0.2f .\nNew Voltage gain is  %0.3f .",Ri,Ris,Av,AV1)
-- 
cgit