The flowmeter utilizes a magnet to apply a magnetic field B

Last updated: 6/24/2023

The flowmeter utilizes a magnet to apply a magnetic field B across an artery This field produces magnetic force F that cause the positive and negative ions in the blood to move to opposite sides of the artery The segregation of charges creates an electric field E within the artery The voltage V across the artery is measured by the meter shown in figure and is equal to Ed The electric field produces an electric force F on the ions that acts in the direction opposite to F Charges continue to accumulate until an equilibrium condition occurs when F F At equilibrium v V Bd where v is the velocity of flow of blood in the artery and d is the diameter of the artery Density of blood is 10 kg m m artery magnet magnet voltmeter Which of the following will occur when the magnet used in the flowmeter discussed in the passage is replaced with a stronger magnet A The electric field will reverse polarity B The electric field will decrease C The voltage will increase D Blood will flow faster