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The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25 cm apart. The system is in a uniform magnetic field of strength 0.38 T, which is directed into the page. The resistances of the rod and the rails are negligible, but the section PQ has a resistance of 0.25 0. B sense x X x M x x 25 cm X x x x - 5.0 m/s X X x * 0.25 Ω X XNX (a) What is the emf (in V, including its sense) induced in the rod when it is moving to the right with a speed of 5.0 m/s? magnitude 0 x V Current flows clockwise. X X x (b) What force (in N) is required to keep the rod moving at this speed? (Enter the magnitude.) 5 x N (c) What is the rate at which work is done by this force (in 1/s)? (d) What is the power dissipated in the resistor (in W)? 0 XW

The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25 cm apart. The system is in a uniform magnetic field of strength 0.38 T, which is directed into the page. The resistances of the rod and the rails are negligible, but the section PQ has a resistance of 0.25 0. B sense x X x M x x 25 cm X x x x - 5.0 m/s X X x * 0.25 Ω X XNX (a) What is the emf (in V, including its sense) induced in the rod when it is moving to the right with a speed of 5.0 m/s? magnitude 0 x V Current flows clockwise. X X x (b) What force (in N) is required to keep the rod moving at this speed? (Enter the magnitude.) 5 x N (c) What is the rate at which work is done by this force (in 1/s)? (d) What is the power dissipated in the resistor (in W)? 0 XW

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25 cm apart. The system is in a uniform magnetic field of strength 0.38 T, which is directed into the page. The resistances of the rod and the rails are negligible, but the section PQ has a resistance of 0.25 0. B X sense x M x x Xx 25 cm X x x x 5.0 m/s x x P * N * (a) What is the emf (in V, including its sense) induced in the rod when it is moving to the right with a speed of 5.0 m/s? magnitude 0 x v Current flows clockwise. x x x • 0.25 Ω X x (b) What force (in N) is required to keep the rod moving at this speed? (Enter the magnitude.) 5 XN (c) What is the rate at which work is done by this force (in J/s)? .1 x J/s (d) What is the power dissipated in the resistor (in W)? 0 XW
Transcribed Image Text:The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25 cm apart. The system is in a uniform magnetic field of strength 0.38 T, which is directed into the page. The resistances of the rod and the rails are negligible, but the section PQ has a resistance of 0.25 0. B X sense x M x x Xx 25 cm X x x x 5.0 m/s x x P * N * (a) What is the emf (in V, including its sense) induced in the rod when it is moving to the right with a speed of 5.0 m/s? magnitude 0 x v Current flows clockwise. x x x • 0.25 Ω X x (b) What force (in N) is required to keep the rod moving at this speed? (Enter the magnitude.) 5 XN (c) What is the rate at which work is done by this force (in J/s)? .1 x J/s (d) What is the power dissipated in the resistor (in W)? 0 XW
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