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+// Find the maximum transconductance
+// Basic Electronics
+// By Debashis De
+// First Edition, 2010
+// Dorling Kindersley Pvt. Ltd. India
+// Example 7-54 in page 358
+
+clear; clc; close;
+
+// Given data
+Idss=1*10^-3; // Drain-source current in mA
+Vp=-5; // Pinch off voltage in V
+
+// Calculation
+gm=(2*Idss)/-Vp;
+printf("gm = %0.1e mho",gm);
+
+// Result
+// gm = 0.4 m-mho
+\ No newline at end of file
diff --git a/181/CH7/EX7.54/example7_54.txt b/181/CH7/EX7.54/example7_54.txt
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+ gm = 4.0e-004 mho 
+\ No newline at end of file