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. As we saw in Figure 24.36, 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 (positive) 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 3.0 mm?
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. As we saw in Figure 24.36, 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 (positive) 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 3.0 mm?
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. As we saw in Figure 24.36, 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 (positive) 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 3.0 mm?
Interaction between an electric field and a magnetic field.
air is pushed steadily though a forced air pipe at a steady speed of 4.0 m/s. the pipe measures 56 cm by 22 cm. how fast will air move though a narrower portion of the pipe that is also rectangular and measures 32 cm by 22 cm
Chapter 24 Solutions
Student Workbook for College Physics: A Strategic Approach Volume 1 (Chs. 1-16)
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