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+//===========================================================================
+//chapter 10 example 5
+clc;clear all;
+
+//variable declaration
+Vx1 = 0.835; //indicated calue of voltage drop across the unknown resistance in V
+emf = -25*10^-6; //thermal emf with unknown resistance in V
+S = 0.10025; //resistance of standard resistor in Ω
+Vs = 0.984; //voltage drop across standard resistor in V
+
+//calculations
+Vx = Vx1-emf;
+X = (S*Vx)/Vs; //Resistance of resistor under test in Ω
+
+//result
+mprintf("unknown resistor = %3.5f Ω",X);