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//===========================================================================
//chapter 5 example 19
clc;
clear all;
//variable declaration
L = 150; //length of working wire at room temperature in mm
alpha = 16*10^-6; //coefficient of linear expansion
T = 85; //temperature in ° C
Si =1; //initial sag in mm
//calculations
dL = alpha*L*T; //increase in length of the wire when gets heated through 85 ° C in mm
M = sqrt(L/(2*dL)); //magnification with no intial sag
S = sqrt((L*dL)/(2)); //Sag in mm
Sn = S-Si; //net increase in Sag in mm
M1 = Sn/(dL); //magnification with initial Sag of 1 mm
//result
mprintf("magnification with no intial sag = %3.2f",M);
mprintf("\nSag = %3.2f mm",S);
mprintf("\nnet increase in Sag =%3.2f mm",Sn);
mprintf("\nmagnification with initial Sag of 1 mm = %3.2f",M1);
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