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+// Find voltage gain,output impedance
+// Basic Electronics
+// By Debashis De
+// First Edition, 2010
+// Dorling Kindersley Pvt. Ltd. India
+// Example 7-11 in page 320
+
+clear; clc; close;
+
+// Given data
+// The Thevenin equivalent of fig. is derived
+
+// Calculation
+A=(9.5*10)/(10+20);
+R_0=(1/(10*10^3))+(1/(20*10^3));
+R=1/R_0;
+printf("(a)Voltage gain = %0.2f\n",A);
+printf("(b)Output impedance = %0.2e",R);
+
+// Result
+// (a) A = 3.17
+// (b) R_0 = 6.67 K
+\ No newline at end of file
diff --git a/181/CH7/EX7.11/example7_11.txt b/181/CH7/EX7.11/example7_11.txt
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+(a)Voltage gain = 3.17
+(b)Output impedance = 6.67e+003 
+\ No newline at end of file