A Hall probe serves to measure magnetic field strength. One such probe consists of a poor conductor 0.121 mm thick, whose charge‑carrier density is 1.27×1025⁢ m−3. When a 1.77 A current flows through the probe, the Hall voltage is measured to be 3.15 mV. The elementary charge e=1.602×10−19 C. What is the magnetic field strength B?

A Hall probe serves to measure magnetic field strength. One such probe consists of a poor conductor 0.121 mm thick, whose charge‑carrier density is 1.27×1025⁢ m−3. When a 1.77 A current flows through the probe, the Hall voltage is measured to be 3.15 mV. The elementary charge e=1.602×10−19 C. What is the magnetic field strength B?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 55P: The magnetic field in a cyclotron is 1.25 T, and the maximum orbital radius of the circulating...

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