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- Position-Time Graphs & Velocity(0)
- Conceptual Problems with Position-Time Graphs(0)
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- Magnetic Field Produced by Straight Currents(0)
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- Toroidal Solenoids aka Toroids(0)
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28. Magnetic Fields and Forces
Magnets and Magnetic Fields
28. Magnetic Fields and Forces
Magnets and Magnetic Fields - Online Tutor, Practice Problems & Exam Prep
Back to all problems
12PRACTICE PROBLEM
A team of engineers is working on a project to measure the flow speed of a liquid containing ions through a pipe. The fluid flows through a pipe with a diameter of 4.0 mm, and the engineers decide to use the Hall effect to determine the flow speed. A magnetic field of 0.080 T is applied perpendicular to the flow, and the measured emf across the width of the pipe is 0.15 mV.
(a) One of the engineers asks how the type of ions in the liquid (positive or negative) would affect both the magnitude and the polarity of the generated emf. How would you respond to this question?
(b) Calculate the liquid flow speed in the pipe Using the measured EMF and known magnetic field strength.
A team of engineers is working on a project to measure the flow speed of a liquid containing ions through a pipe. The fluid flows through a pipe with a diameter of 4.0 mm, and the engineers decide to use the Hall effect to determine the flow speed. A magnetic field of 0.080 T is applied perpendicular to the flow, and the measured emf across the width of the pipe is 0.15 mV.
(a) One of the engineers asks how the type of ions in the liquid (positive or negative) would affect both the magnitude and the polarity of the generated emf. How would you respond to this question?
(b) Calculate the liquid flow speed in the pipe Using the measured EMF and known magnetic field strength.