4. A copper rod(1.6 m) sits along conducting rails, the friction can be neglected. The rails are in series with a 4.00-2 resistor. A constant magnetic field of 2.20 T is pointing perpendicular out through the loop. 4.00 Fapplied 1.60 m Ω Magnetic field is outward (•) (a) What force is required to move the bar to the right with a speed of 5.00 m/s?

College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter20: Induced Voltages And Inductance
Section: Chapter Questions
Problem 56AP
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4. A copper rod(1.6 m) sits along conducting rails, the friction can be neglected. The rails
are in series with a 4.00-2 resistor. A constant magnetic field of 2.20 T is pointing
perpendicular out through the loop.
4.00
Ω
1.60 m
Fapplied
Magnetic field is outward ()
(a) What force is required to move the bar to the right with a speed of 5.00 m/s?
(b) At what rate is energy dissipated in the 4.00 N resistor?
WWW-
Transcribed Image Text:4. A copper rod(1.6 m) sits along conducting rails, the friction can be neglected. The rails are in series with a 4.00-2 resistor. A constant magnetic field of 2.20 T is pointing perpendicular out through the loop. 4.00 Ω 1.60 m Fapplied Magnetic field is outward () (a) What force is required to move the bar to the right with a speed of 5.00 m/s? (b) At what rate is energy dissipated in the 4.00 N resistor? WWW-
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