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A Hall-effect probe operates with a 120-mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0880 T, it produces a Hall voltage of 0.740 µV. (a) When it is used to measure an unknown magnetic field, the Hall voltage is 0.360 µV. What is the magnitude of the unknown field? mT (b) The thickness of the probe in the direction of B is 2.20 mm. Find the density of the charge carriers, each of which has charge of magnitude e).

A Hall-effect probe operates with a 120-mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0880 T, it produces a Hall voltage of 0.740 µV. (a) When it is used to measure an unknown magnetic field, the Hall voltage is 0.360 µV. What is the magnitude of the unknown field? mT (b) The thickness of the probe in the direction of B is 2.20 mm. Find the density of the charge carriers, each of which has charge of magnitude e).

College Physics
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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A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0880 T, it produces a Hall voltage of 0.740 μV. (a) When it is used to measure an unknown magnetic field, the Hall voltage is 0.360 μV. What is the magnitude of the unknown field? mT (b) The thickness of the probe in the direction of B is 2.20 mm. Find the density of the charge carriers, each of which has charge of magnitude e). -3 Need Help? m Read It
Transcribed Image Text:A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0880 T, it produces a Hall voltage of 0.740 μV. (a) When it is used to measure an unknown magnetic field, the Hall voltage is 0.360 μV. What is the magnitude of the unknown field? mT (b) The thickness of the probe in the direction of B is 2.20 mm. Find the density of the charge carriers, each of which has charge of magnitude e). -3 Need Help? m Read It
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