Electrons in Earth’s upper atmosphere have typical speedsnear 6.00 x 105 m/s. (a) Calculate the magnitude of Earth’smagnetic field if an electron’s velocity is perpendicular to themagnetic field and its circular path has a radius of 7.00 x 10-2 m.(b) Calculate the number of times per second that an electroncircles around a magnetic field line.

Electrons in Earth’s upper atmosphere have typical speedsnear 6.00 x 105 m/s. (a) Calculate the magnitude of Earth’smagnetic field if an electron’s velocity is perpendicular to themagnetic field and its circular path has a radius of 7.00 x 10-2 m.(b) Calculate the number of times per second that an electroncircles around a magnetic field line.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 25P: A cosmic-ray electron moves at 7.5 × 106 m/sinches perpendicular to Earth’s magnetic field at an...

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