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//===========================================================================
//chapter 8 example 6
clc;clear all;
//variable declaration
M = 500; //meter constant in revolutions per kWh
n = 40; //number of revolutions made
T1 = 58.1; //time in seconds
P = 5; //power in kW
//calculations
x =P*T1;
E =(x/3600); //Energy consumed in 58.1 seconds
E1 = n/(M); //energy consumption registeredin kWh
e = ((E1-E)/E)*100; //percentage error in %
//result
mprintf("percentage error = %3.2f percentage",e);
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