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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /3507/CH13/EX13.14/Ex13_14.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '3507/CH13/EX13.14/Ex13_14.sce')
| -rw-r--r-- | 3507/CH13/EX13.14/Ex13_14.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/3507/CH13/EX13.14/Ex13_14.sce b/3507/CH13/EX13.14/Ex13_14.sce new file mode 100644 index 000000000..b6e2a0064 --- /dev/null +++ b/3507/CH13/EX13.14/Ex13_14.sce @@ -0,0 +1,21 @@ +//chapter13
+//example13.14
+//page288
+
+R1=45 // kilo ohm
+R2=15 // kilo ohm
+Re=7.5 // kilo ohm
+Vcc=30 // V
+Vbe=0.7 // V
+gain_beta=200
+
+V2=Vcc*R2/(R1+R2) // voltage across R2
+Ve=V2-Vbe // voltage across Re
+Ie=Ve/Re
+re_dash=1d-3*25/Ie // in kilo ohm
+Zin_base=gain_beta*re_dash
+Zin=Zin_base*(R1*R2/(R1+R2))/(Zin_base+R1*R2/(R1+R2))
+
+printf("input impedence of amplifier circuit = %.3f kilo ohm \n",Zin)
+
+// the accurate answer for input impedence is 3.701 kilo ohm but in book it is given as 3.45 kilo ohm
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