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+// To find percentage error
+// Modern Electronic Instrumentation And Measurement Techniques
+// By Albert D. Helfrick, William D. Cooper
+// First Edition Second Impression, 2009
+// Dorling Kindersly Pvt. Ltd. India
+// Example 6-6 in Page 163
+
+
+clear; clc; close;
+
+// Given data
+R = 10; //Resistance of the coil in ohm
+f = 1*10^6; //The oscillator frequency in Hz
+C = 65*10^-12; //The value of resonating capacitor in F
+R_i = 0.02; //The value of the insertion resistor in ohm
+
+//Calculations
+w = 2*%pi*f;
+Q_e = 1/(w*C*R);
+printf("The effective Q of the coil = %0.1f\n",Q_e);
+Q_i = 1/(w*C*(R+R_i));
+printf("The indicated Q of the coil = %0.1f\n",Q_i);
+%error = (Q_e - Q_i)/Q_e*100;
+printf("The percentage error is = %0.1f %%",%error);
+
+//Result
+// The effective Q of the coil = 244.9
+// The indicated Q of the coil = 244.4
+// The percentage error is = 0.2 % 
+