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+//=====================================================================================================
+//chapter 1 example 8
+
+clc;
+clear all;
+
+//variable declaration
+E0 = 12; //open -circuit voltage in V
+R0 = 1; //output resistance in kΩ
+RL = 25; //output resistance in kΩ
+
+
+//calculations
+EL = E0/(1+(R0/RL)); //measured value of voltage in V
+Er = EL-E0; //errorin measurement in V
+p = ((EL-E0)/(E0))*100; //percentage error in %
+
+//result
+mprintf("measured value of voltage = %3.3f V",EL);
+mprintf("\nerror in measurement= %3.3f V",Er);
+mprintf("\npercentage error = %3.3f percent low",p);
+
+
+//================================================================================================