iestión A blood vein of length 250 cm has blood flowing through it. The doctor suspected that there is a blood clot in that vein as blood was not flowing at normal speed. Hence the doctor decided to use Hall sensor to measure the velocity of blood. A magnetic field is applied across the leg of the patient of value 0.356 µT. The sensor reads a Hall emf of value 17.5 µV. a) What is the velocity of blood if the flow is perpendicular to the applied field. b) What is the percentage reduction in the velocity of the flow if under normal conditions, blood moves from point A to B in 0.032 s. Blood clet Leng saphenous vein - lalleffet eses I sensers -80 cim

iestión A blood vein of length 250 cm has blood flowing through it. The doctor suspected that there is a blood clot in that vein as blood was not flowing at normal speed. Hence the doctor decided to use Hall sensor to measure the velocity of blood. A magnetic field is applied across the leg of the patient of value 0.356 µT. The sensor reads a Hall emf of value 17.5 µV. a) What is the velocity of blood if the flow is perpendicular to the applied field. b) What is the percentage reduction in the velocity of the flow if under normal conditions, blood moves from point A to B in 0.032 s. Blood clet Leng saphenous vein - lalleffet eses I sensers -80 cim