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

---
 2459/CH16/EX16.19/Ex16_19.PNG | Bin 0 -> 4224 bytes
 2459/CH16/EX16.19/Ex16_19.sce |  23 +++++++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 2459/CH16/EX16.19/Ex16_19.PNG
 create mode 100644 2459/CH16/EX16.19/Ex16_19.sce

(limited to '2459/CH16/EX16.19')

diff --git a/2459/CH16/EX16.19/Ex16_19.PNG b/2459/CH16/EX16.19/Ex16_19.PNG
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index 000000000..deb996a3f
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diff --git a/2459/CH16/EX16.19/Ex16_19.sce b/2459/CH16/EX16.19/Ex16_19.sce
new file mode 100644
index 000000000..42c4a9236
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+//chapter16
+//example16.19
+//page359
+
+Vcc=10 // V
+R1= 10 // kilo ohm
+R2=10 // kilo ohm
+Vbe=0.7 // V
+Re=4.3 // kilo ohm
+gain_beta=200
+Rl=10 // kilo ohm
+
+V2=Vcc*R2/(R1+R2)
+Ve=V2-Vbe
+Ie=Ve/Re
+re_dash=25/Ie
+Re_dash=Re*Rl/(Re+Rl)
+Zin_base=gain_beta*(re_dash+Re_dash)
+Zin=Zin_base*(R1*R2/(R1+R2))/(Zin_base+R1*R2/(R1+R2))
+
+printf("input impedence = %.3f kilo ohm \n",Zin)
+
+// the accurate answer is 4.996 kilo ohm but in book it is given as 4.96 kilo ohm
-- 
cgit