//chapter 20
//example 20.7
//page 931
printf("\n")
printf("given")
Rbb=4*10^3;Pd25=360*10^-3;D=2.4*10^-3;T2=100;
Pd=Pd25-D*(T2-25)
Vb1b1=sqrt(Rbb*Pd);
printf(" maximum Vb1b1 that should be used at a temp 100 is %3.1fV\n",Vb1b1)