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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /2459/CH14/EX14.7 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '2459/CH14/EX14.7')
| -rw-r--r-- | 2459/CH14/EX14.7/Ex14_7.PNG | bin | 0 -> 5041 bytes | |||
| -rw-r--r-- | 2459/CH14/EX14.7/Ex14_7.sce | 19 |
2 files changed, 19 insertions, 0 deletions
diff --git a/2459/CH14/EX14.7/Ex14_7.PNG b/2459/CH14/EX14.7/Ex14_7.PNG Binary files differnew file mode 100644 index 000000000..19f1bd352 --- /dev/null +++ b/2459/CH14/EX14.7/Ex14_7.PNG diff --git a/2459/CH14/EX14.7/Ex14_7.sce b/2459/CH14/EX14.7/Ex14_7.sce new file mode 100644 index 000000000..cbc051eab --- /dev/null +++ b/2459/CH14/EX14.7/Ex14_7.sce @@ -0,0 +1,19 @@ +//chapter 14
+//example 14.7
+//page 302
+
+Ao_db=70 // db
+Av_db=67 // db
+Rout=1.5 // kilo ohm
+
+// since 20*log(Ao)-20*log(Av)=Ao_db-Av_db we get
+// 20*log(Ao/Av) = Ao_db-Av_db so
+// Ao/Av = 10^((Ao_db-Av_db)/20)
+// and also Ao/Av=1+Rout/Rl since Av/Ao=Rl/(Rl+Rout)
+
+// so making Rl as subject we get
+Rl=Rout/(10^((Ao_db-Av_db)/20)-1)
+
+printf("minimum value of load resistance = %.3f kilo ohm \n",Rl)
+
+// the accurate answer is 3.636 kilo ohm
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