2. The artery in the figure below has an inside diameter of 2.75 mm and passes through a region where the magnetic field is 0.065 T. (a) If the voltage difference between the electrodes is 195 µV, what is the speed of the blood? (b) Which electrode is at the higher potential? Does your answer depend on the sign of the ions in the blood? Explain. Electrodes Artery Direction of blood flow • Positive ions • Negative ions Voltmeter

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Chapter1: Units, Trigonometry. And Vectors
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2. The artery in the figure below has an inside
diameter of 2.75 mm and passes through a
region where the magnetic field is 0.065 T.
(a) If the voltage difference between the
electrodes is 195 µV, what is the speed of the
blood? (b) Which electrode is at the higher
potential? Does your answer depend on the
sign of the ions in the blood? Explain.
Electrodes
Artery
Direction of
blood flow
• Positive ions
• Negative ions
Voltmeter
Transcribed Image Text:2. The artery in the figure below has an inside diameter of 2.75 mm and passes through a region where the magnetic field is 0.065 T. (a) If the voltage difference between the electrodes is 195 µV, what is the speed of the blood? (b) Which electrode is at the higher potential? Does your answer depend on the sign of the ions in the blood? Explain. Electrodes Artery Direction of blood flow • Positive ions • Negative ions Voltmeter
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