Part A A Hall-effect probe to measure magnetic field strengths needs to be calibrated in a known magnetic field. Although it is not easy to do, magnetic fields can be precisely measured by measuring the cyclotron frequency of protons. A testing laboratory adjusts a magnetic field until the proton's cyclotron frequency is 9.70 MHz . At this field strength, the Hall voltage on the probe is 0.546 mV when the current through the probe is 0.143 mA . Later, when an unknown magnetic field is measured, the Hall voltage at the same current is 1.740 mV . What is the strength of this magnetic field? Express your answer with the appropriate units. HA ? Value

Part A A Hall-effect probe to measure magnetic field strengths needs to be calibrated in a known magnetic field. Although it is not easy to do, magnetic fields can be precisely measured by measuring the cyclotron frequency of protons. A testing laboratory adjusts a magnetic field until the proton's cyclotron frequency is 9.70 MHz . At this field strength, the Hall voltage on the probe is 0.546 mV when the current through the probe is 0.143 mA . Later, when an unknown magnetic field is measured, the Hall voltage at the same current is 1.740 mV . What is the strength of this magnetic field? Express your answer with the appropriate units. HA ? Value

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

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Part A
A Hall-effect probe to measure magnetic field
strengths needs to be calibrated in a known
magnetic field. Although it is not easy to do,
magnetic fields can be precisely measured by
measuring the cyclotron frequency of protons. A
testing laboratory adjusts a magnetic field until the
proton's cyclotron frequency is 9.70 MHz . At this
field strength, the Hall voltage on the probe is 0.546
mV when the current through the probe is 0.143
mA . Later, when an unknown magnetic field is
measured, the Hall voltage at the same current is
1.740 mV .
What is the strength of this magnetic field?
Express your answer with the appropriate units.
HẢ
Value

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