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//CHAPTER 4- MEASURING INSTRUMENTS
//Example 7
disp("CHAPTER 4");
disp("EXAMPLE 7");
//VARIABLE INITIALIZATION
m_c=100; //meter constant in rev/kwh
I=20; //in Amperes
v=210; //in Volts
pow_fact=0.8; //leading
rev_act=350; //actual revolution
//SOLUTION
E=(v*I*pow_fact)/1000; //from Wh to kWh
rev_true=m_c*E;
disp(sprintf("The number of revolutions made by the meter is %f",rev_true));
err=(rev_act-rev_true)/rev_true;
err=err*100; //percentage error
disp(sprintf("The percentage error is %f %%",err));
if(err<0) then
disp("The negative sign indicates that the meter will run slow");
end
//END
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