An electromagnetic flowmeter is useful when it is desirable not to interrupt the

Question

An electromagnetic flowmeter is useful when it is desirable not to interrupt the system in which the fluid is flowing (such as the blood in an artery during heart surgery). Such a device is illustrated in the figure. The conducting fluid moves with speed v in a tube of diameter d. Perpendicular to this tube is a magnetic field B. A voltage V is induced between opposite sides of the tube due to the motion of the conducting fluid in the magnetic field. For a certain case, B = 0.120 T, d = 1.2 cm, and the measured voltage is V = 2.88 mV.

Determine the speed of the fluid. (Must show your work to recieve credit for this question)

An electromagnetic flowmeter is useful when it is desirable not to interrupt the system in which the fluid is flowing (such as the blood in an artery during heart surgery). Such a device is illustrated in the figure. The conducting fluid moves with speed v in a tube of diameter d. Perpendicular to this tube is a magnetic field B. A voltage V is induced between opposite sides of the tube due to the motion of the conducting fluid in the magnetic field. For a certain case, B = 0.120 T, d = 1.2 cm, and the measured voltage is V = 2.88 mV. Determine the speed of the fluid. (Must show your work to recieve credit for this question)

Explanation / Answer

apply Drift Speed Vd = Vh B d

where Vh is hall Volatge

B is magnetic field

d is distance

so

Vd = 2.88 e-3 * 0.12 * 0.012

Vd = 4.147 *10^-6   m/s -------------<<<<<<<<<<<<Answer

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.