Question: The artery in Figure 22-14 has an inside diameter of 2.75 mm and passes through a region where the magnetic field is 0.065 T. (a)

The artery in Figure 22-14 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.

Figure 22-14

Electrodes Artery Direction of blood flow • Positive lons • Negative lons Voltmeter

Electrodes Artery Direction of blood flow Positive lons Negative lons Voltmeter

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