r1=3.3*10^(3);
r2=1.2*10^(3);
r3=310;
p1=1;
p2=0.1;
disp("Part a");
rx=r2*r3/r1;
disp("The unknown resistance (in Ω) is"); disp(rx);
e=2*p1+p2;
disp("the maximum possible error (in %) is"); disp(e);
disp("Part b");
v=9;
i=v/(r2+rx);
disp("the current (in mA) through Rx is"); disp(i*1000);
disp("Part c");
i1=v/(r1+r3);
p=i1^2*r3;
disp("Power dissipated (in mW) in R is"); disp(p*1000);