22. Consider the apparatus shown in the figure below in which a conducting bar can be movedalong two rails connected to a lightbulb. The whole system is immersed in a magnetic field ofmagnitude B = 1.00 T perpendicular and into the page. The distance between the horizontalrails is { = 1.20 m. The resistance of the lightbulb is R = 60.0 Q, assumed to be constant. Thebar and rails have negligible resistance. The bar is moved toward the right at a constant speedby a constant force of magnitude F = 0.800 N.х х хF x e xina) Find a symbolic expression for the current in the lightbulb in terms of B, {, R, and v, where v isthe speed of the bar.b) What are the magnitude and direction of the magnetic force on the moving bar?c) What is the numerical value for the speed of the bar?d) What are the magnitude and direction of the current flowing through the bar? For the directionof current, please specify upward or downward through the bar.e) What is the power delivered to the lightbulb?

Answered: Image /qna-images/answer/77c0bb5f-5034-4cd5-aacb-67c1d646b8a0.jpg

22. Consider the apparatus shown in the figure below in which a conducting bar can be moved along two rails connected to a lightbulb. The whole system is immersed in a magnetic field of magnitude B = 1.00 T perpendicular and into the page. The distance between the horizontal rails is ( = 1.20 m. The resistance of the lightbulb is R = 60.0 0, assumed to be constant. The bar and rails have negligible resistance. The bar is moved toward the right at a constant speed by a constant force of magnitude F = 0.800 N. * x x x х х х F x e x B Pin a) Find a symbolic expression for the current in the lightbulb in terms of B, l, R, and v, where v is the speed of the bar. b) What are the magnitude and direction of the magnetic force on the moving bar? c) What is the numerical value for the speed of the bar? d) What are the magnitude and direction of the current flowing through the bar? For the direction of current, please specify upward or downward through the bar. e) What is the power delivered to the lightbulb?

22. Consider the apparatus shown in the figure below in which a conducting bar can be moved along two rails connected to a lightbulb. The whole system is immersed in a magnetic field of magnitude B = 1.00 T perpendicular and into the page. The distance between the horizontal rails is ( = 1.20 m. The resistance of the lightbulb is R = 60.0 0, assumed to be constant. The bar and rails have negligible resistance. The bar is moved toward the right at a constant speed by a constant force of magnitude F = 0.800 N. * x x x х х х F x e x B Pin a) Find a symbolic expression for the current in the lightbulb in terms of B, l, R, and v, where v is the speed of the bar. b) What are the magnitude and direction of the magnetic force on the moving bar? c) What is the numerical value for the speed of the bar? d) What are the magnitude and direction of the current flowing through the bar? For the direction of current, please specify upward or downward through the bar. e) What is the power delivered to the lightbulb?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section: Chapter Questions

Problem 80A

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