(b) Under what condition is the wire able to move upward at constant velocity? (c) Find the magnitude and direction of the minimum magnetic field required to move the wire at constant speed. magnitude direction ---Select--- T (d) What happens if the magnetic field exceeds this minimum value?

(b) Under what condition is the wire able to move upward at constant velocity? (c) Find the magnitude and direction of the minimum magnetic field required to move the wire at constant speed. magnitude direction ---Select--- T (d) What happens if the magnetic field exceeds this minimum value?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 12.8CYU: Check your Understanding Repeat the calculations from the previous example for I0=0.040A .

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Question

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Consider the system pictured in the figure below. A 14.7-cm horizontal wire of mass 14.9 g is placed between two thin, vertical conductors, and a uniform magnetic field acts perpendicular to the page. The wire is free to move vertically without friction on the two vertical conductors. When a 5.45-A current is directed as shown in the figure, the horizontal wire moves upward at constant velocity in the presence of gravity.

(b) Under what condition is the wire able to move upward at constant velocity?

(c) Find the magnitude and direction of the minimum magnetic field required to move the wire at constant speed.
magnitude
direction
---Select---
T
(d) What happens if the magnetic field exceeds this minimum value?

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