A copper rod of mass m = 1.08 kg rests on two horizontal rails a distance L = 0.923 m apart and carries a current of /= 49.0 A from one rail to the other. A top view and a side view are shown in the figure. The coefficient of static friction between rod and rails is µ = 0.640. What are the (a) magnitude and (b) angle (relative to the vertical) of the smallest magnetic field that puts the rod on the verge of sliding?

A copper rod of mass m = 1.08 kg rests on two horizontal rails a distance L = 0.923 m apart and carries a current of /= 49.0 A from one rail to the other. A top view and a side view are shown in the figure. The coefficient of static friction between rod and rails is µ = 0.640. What are the (a) magnitude and (b) angle (relative to the vertical) of the smallest magnetic field that puts the rod on the verge of sliding?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter31: Gauss’s Law For Magnetism And Ampère’s Law

Section: Chapter Questions

Problem 72PQ

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