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+//===========================================================================
+//chapter 1 example 11
+
+
+clc;
+clear all;
+
+//variable declaration
+E     = 20;        //voltage in V
+R1    = 2;         //resistance in kΩ
+R2    = 2;         //resistance in kΩ
+R3    = 1;         //resistance in kΩ
+R     = 200;       //resistance whe current is connected to terminals in Ω
+
+
+//calculations
+Io     = (E/(R1+((R2*R3)/(R2+R3))))*(R2/(R2+R3));    //nortons equivalent current in kΩ
+Rout   = R3+((1/(R1))+(1/(R2)));            //output resistance in kΩ
+IL     = Io*((R1*1000)/((R1*1000)+R));         //measured value of current in mA
+e      = ((IL-Io)/(Io))*100;                      //percentage error in %
+A      = 100+e;              //accuracy of measurement in %
+
+//result
+//mprintf("resistance of voltage  = %3.2f kΩ",Rm);
+
+mprintf("actual value of current flowing through 1000 Ω is %3.2f mA",Io');
+mprintf("\nmeasured value of current when 200 Ω is connected is %3.2f mA",IL);
+mprintf("\npercentage error = %3.1f percentage(low) ",e);
+mprintf("\naccuracy of measurement = %3.1f percentage ",A);
+