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/CH12/EX12.5/Ex12_5.PNG | Bin 0 -> 6574 bytes
 2459/CH12/EX12.5/Ex12_5.sce |  23 +++++++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 2459/CH12/EX12.5/Ex12_5.PNG
 create mode 100644 2459/CH12/EX12.5/Ex12_5.sce

(limited to '2459/CH12/EX12.5')

diff --git a/2459/CH12/EX12.5/Ex12_5.PNG b/2459/CH12/EX12.5/Ex12_5.PNG
new file mode 100644
index 000000000..703a2af99
Binary files /dev/null and b/2459/CH12/EX12.5/Ex12_5.PNG differ
diff --git a/2459/CH12/EX12.5/Ex12_5.sce b/2459/CH12/EX12.5/Ex12_5.sce
new file mode 100644
index 000000000..8d8b2f445
--- /dev/null
+++ b/2459/CH12/EX12.5/Ex12_5.sce
@@ -0,0 +1,23 @@
+//chapter12
+//example12.5
+//page242
+
+Vcc=12 // V
+gain_beta=100
+Vbe=0.3 // V
+Ic=1 // mA
+
+// since gain_beta=Ic/Ib
+Ib=Ic/gain_beta
+
+// since Vcc=Ib*Rb+Vbe we get
+Rb=(Vcc-Vbe)/Ib
+
+gain_beta2=50
+
+// since Vcc=Ib*Rb+Vbe we get
+Ib2=(Vcc-Vbe)/Rb
+Ic2=Ib2*gain_beta2
+
+printf("for beta = 100, base resistor = %.3f kilo ohm \n",Rb)
+printf("for beta = 50, zero signal collector current for same Rb is = %.3f mA \n",Ic2)
-- 
cgit