// Example  2.7

            //  p=i1^2*Rl   i.e  i1=p/Rl

Rl=5;               // Load resistance
p=20;               // Power
i1=p/Rl;
           // i1= i*(R/R+Rl)   i.e  i= i1*(R+Rl)/R 
i=2*(10+5)/10;
disp(' Supply Current is = '+string(i)+' Amp');

 
          // p 25    2.7