// Calculate the values of resistance R1 and R2
clc;
E_20=0.112*10^-3;// emf at 20degree C
E_900=8.446*10^-3;
E_1200=11.946*10^-3;
E1=E_900-E_20;
E2=E_1200-E_20;
disp('E1=1.08*R1/(R1+2.5+R2);      (i)')
disp('E2=1.08*(R1+2.5)/(R1+2.5+R2);      (ii)')
disp('on solving (i) and (ii)')
R1=5.95;
R2=762.6;
disp(R1,'value of resistance R1 (ohm)=')
disp(R2,'value of resistance R2 (ohm)=')