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+// To find voltmeter sensitivity on AC range
+// Modern Electronic Instrumentation And Measurement Techniques
+// By Albert D. Helfrick, William D. Cooper
+// First Edition Second Impression, 2009
+// Dorling Kindersly Pvt. Ltd. India
+// Example 4-10 in Page 81
+
+
+clear; clc; close;
+
+// Given data
+R_m = 100; //Internal resistance of the movement in ohm
+R_sh = 100;
+I_fsd = 1*(10^-3); //current for full scale deflection
+R_D1 = 400;
+R_D2 = 400;
+E_rms = 10; //AC range of the voltmeter
+
+//Calculations
+disp('Assuming infinite reverse resistance');
+I_t = 2 *I_fsd;
+E_dc = 0.45 * E_rms;
+R_t = E_dc / I_t;
+R_p = R_m *R_sh/(R_m+R_sh);
+R_s = R_t - (R_D1 + R_p);
+printf("(a)  The value of the multiplier resistor required, R_s = %d ohm\n",R_s);
+S = R_t / E_rms;
+printf("(b)  The sensitivity of the voltmeter on ac range, S = %d ohm/V",S);
+
+//Result
+// Assuming infinite reverse resistance   
+// (a)  The value of the multiplier resistor required, R_s = 1800 ohm
+// (b)  The sensitivity of the voltmeter on ac range, S = 225 ohm/V 
+
+
+
+
+
diff --git a/174/CH4/EX4.10/example4_10.txt b/174/CH4/EX4.10/example4_10.txt
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+Assuming infinite reverse resistance   
+(a)  The value of the multiplier resistor required, R_s = 1800 ohm
+(b)  The sensitivity of the voltmeter on ac range, S = 225 ohm/V