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Diffstat (limited to '2459/CH14/EX14.11')
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| -rw-r--r-- | 2459/CH14/EX14.11/Ex14_11.sce | 21 |
2 files changed, 21 insertions, 0 deletions
diff --git a/2459/CH14/EX14.11/Ex14_11.PNG b/2459/CH14/EX14.11/Ex14_11.PNG Binary files differnew file mode 100644 index 000000000..2816be727 --- /dev/null +++ b/2459/CH14/EX14.11/Ex14_11.PNG diff --git a/2459/CH14/EX14.11/Ex14_11.sce b/2459/CH14/EX14.11/Ex14_11.sce new file mode 100644 index 000000000..d699f977b --- /dev/null +++ b/2459/CH14/EX14.11/Ex14_11.sce @@ -0,0 +1,21 @@ +// chapter14
+// example14.11
+// page 306
+
+Rin=1 // kilo ohm
+Rc= 2 // kilo ohm
+gain_beta=100
+
+// since first stage has loading effect of input impedence of second stage, we get effective load of first stage as
+R_AC=Rc*Rin/(Rc+Rin)
+Av1=gain_beta*R_AC/Rin
+
+// second stage has no loading effect so its gain
+Av2=gain_beta*Rc/Rin
+Av=Av1*Av2
+
+printf("voltage gain of first stage = %.3f \n",Av1)
+printf("voltage gain of second stage = %.3f \n",Av2)
+printf("total voltage gain = %.3f \n",Av)
+
+// the accurate answer for gain of first stage is 66.667 and total gain is 13333.33 but in book they are given as 66 and 13200 respectively
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