Question
In giving a patient a blood transfusion, the bottle is set at a level 1.5m above the needle of internal radius 0-15mm and length 3 cm. Find the rate of transfusion of blood. Take the density of blood 1.02 gm/cc and η= 0.024 poise.
Solution
According to Poiseuille’s equation, the rate of flow of fluid is, 
