Question:Typical blood velocities in the coronary arteries range from 10 to
30 cm/s. An electromagnetic flowmeter...
Question
Typical blood velocities in the coronary arteries range from 10 to
30 cm/s. An electromagnetic flowmeter...
Typical blood velocities in the coronary arteries range from 10 to
30 cm/s. An electromagnetic flowmeter applies a magnetic field of
0.25 T to a coronary artery with a blood velocity of 15 cm/s. This
field exerts a force on ions in the blood, which will separate. The
ions will separate until they make an electric field that exactly
balances the magnetic force. This electric field produces a voltage
that can be measured.
a. What force is felt by a singly ionized (+) sodium ion?
b. Charges in the blood will separate until they produce an
electric field that cancels this magnetic force. What will be the
resulting electric field?
c. What voltage will this electric field produce across an artery
with a diameter of 3.0mm?