//pagenumber 139 example 2
clear
i1=20*10^-3;//ampere
i=30*10^-3;//ampere
v1=5.6;//volts
v=5.65;//volts
//condition
u=35*10^-3;//ampere
voltag=5*u+5.5;
disp("voltage drop   =   "+string(voltag)+"volts");