//chapter 3
//example 3.3
//page 83
printf("\n")
printf("given")
C1=680*10^-6;Eo=28;Rl=200;f=60;
Il=Eo/Rl;
T=1/f;
t1=T;
Vr=(Il*t1)/C1;
printf("peak to peak ripple voltage is %3.2fV\n",Vr)