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+// calculate voltage gain of ac amplifier

+// Electronic Principles

+// By Albert Malvino , David Bates

+// Seventh Edition

+// The McGraw-Hill Companies

+// Example 16-1, page 567

+

+clear; clc; close;

+

+// Given data

+f1=20;// cutoff frequency in hertz

+f2=20*10^3;// cutoff frequency in hertz

+fin1=5;// input frequency in hertz

+fin2=200*10^3;// input frequency in hertz

+Avmid=200;// midband voltage gain

+

+// Calculations

+Av1=Avmid/((1+((f1/fin1)^2))^0.5)// Voltage gain for input frequency below midband

+Av2=Avmid*1/((1+((fin2/f2)^2))^0.5); // Voltage gain for input frequency above midband

+disp(Av1,"Voltage  gain for input frequency below midband")

+disp(Av2,"Voltage gain or input frequency above midband")

+

+// Result

+// Voltage gain for an input frequency of 5 Hertz is 48.5

+// Voltage gain for an input frequency of 20 KHertz is 19.9
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diff --git a/317/CH16/EX16.1/example1.txt b/317/CH16/EX16.1/example1.txt
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+Voltage gain for an input frequency of 5 Hertz is 48.5

+Voltage gain for an input frequency of 20 KHertz is 19.9
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