A charged sphere is dropped from height H. Which of the following holds true for the sphere's magnetic field? O a. The sphere only has an electric field and no magnetic field. O b. The sphere's acceleration will be greatly affected by the force applied by the sphere's magnetic field. O C. As long as its charge does not change, the sphere's magnetic field will remain the same as it travels downward. d. The bigger H is, the greater the magnetic field gets when the sphere reaches the ground.

A charged sphere is dropped from height H. Which of the following holds true for the sphere's magnetic field? O a. The sphere only has an electric field and no magnetic field. O b. The sphere's acceleration will be greatly affected by the force applied by the sphere's magnetic field. O C. As long as its charge does not change, the sphere's magnetic field will remain the same as it travels downward. d. The bigger H is, the greater the magnetic field gets when the sphere reaches the ground.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 65AP: An electron moving with a velocity v=(4.0i+3.0j+2.0k)106m/s enters a region where there is a uniform...

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(a) A physicist performing a sensitive measurement wants to limit the magnetic force on a moving charge in her equipment to less than 1.001012N. What is the greatest the charge can be if it moves at a maximum speed of 30.0 m/s in the Earth’s field? (b) Discuss whether it would be difficult to limit the charge to less than the value found in (a) by competing it with typical static electricity and noting that static is often absent.
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