Answered: The figure below shows a top view of a…

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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Question

The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is

R = 6.60 Ω,

and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let ℓ = 1.20 m.

A vertical bar and two parallel horizontal rails lie in the plane of the page, in a region of uniform magnetic field, vector B_in, pointing into the page. The parallel rails run from left to right, with one a distance ℓ above the other. The left ends of the rails are connected by a vertical wire containing a resistor R. The vertical bar lies across the rails to the right of the wire. Force vector F_app points from the bar toward the right.

(a) Calculate the applied force required to move the bar to the right at a constant speed of 2.50 m/s.
N (to the right)

(b) At what rate is energy delivered to the resistor?
W

The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.60 , and a 2.50-T
magnetic field is directed perpendicularly downward, into the page. Let l = 1.20 m.
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(a) Calculate the applied force required to move the bar to the right at a constant speed of 2.50 m/s.
N (to the right)
(b) At what rate is energy delivered to the resistor?
W

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