Consider the system pictured in the figure below. A 15.1-cm horizontal wire of mass 14.0 g is placed betreen 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 bwo vertical conductors. When a 5.25-A current is directed as shown in the figu moves upward at constant velocity in the presence of gravity. (a) What forces act on the horizontal wire? (Select all that apply.) O electric force O gravitational force 2 magnetic force (b) Under what condition is the wire able to move upward at constant velocity? When he maonesio force is upward and balances the downward oravitational force. the net foroe on the wire is ze lconstant velocity. zero, and the wire can move upward at (c) Find the magnitude and direction of the minimum magnetic field required to move the wire at constant speed. 0.173 T out of the soreen v magnitude direction (d) What happens if the magnetic field exceeds this minimum value?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter22: Magnetic Forces And Magnetic Fields
Section: Chapter Questions
Problem 51P
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Please solve Part d

Consider the system pictured in the figure below. A 15.1-cm horizontal wire of mass 14.0 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 5.25-A current is directed as shown in the figure, the horizontal wire
moves upward at constant velocity in the presence of gravity.
(a) What forces act on the horizontal wire? (Select all that apply.)
O electric force
V gravitational force
V magnetic force
(b) Under what condition is the wire able to move upward at constant velocity?
When the magnetic force is upward and balances the downward gravitational
force, the net force on the wire is zero, and the wire can 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
0.173
direction
out of the screen v
(d) What happens if the magnetic field exceeds this minimum value?
Transcribed Image Text:Consider the system pictured in the figure below. A 15.1-cm horizontal wire of mass 14.0 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 5.25-A current is directed as shown in the figure, the horizontal wire moves upward at constant velocity in the presence of gravity. (a) What forces act on the horizontal wire? (Select all that apply.) O electric force V gravitational force V magnetic force (b) Under what condition is the wire able to move upward at constant velocity? When the magnetic force is upward and balances the downward gravitational force, the net force on the wire is zero, and the wire can 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 0.173 direction out of the screen v (d) What happens if the magnetic field exceeds this minimum value?
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