The figure shows a U-shaped conducting rail that is oriented vertically in a horizontal magnetic field B. The rail has no electric resistance and does not move. A slide wire with mass m and resistance R can slide up and down without friction while maintaining electrical contact with the rail. The slide wire is released from rest. (Figure 1) Part A The slide wire reaches a terminal speed vrerm. Find an expression for vrerm Express your answer in terms of given quantities and appropriate constants. ? Vrerm = %3D Submit Request Answer Part B Determine the value of a terminal velocity vterm if l = 20 cm , m =7.0 g, R= 0.102, and B = 0.51 T Express your answer to two significant figures and include the appropriate units. ? Figure < 1 of 1 > Vrerm = Value Units Submit Request Answer Provide Feedback

University Physics Volume 2
18th Edition
ISBN:9781938168161
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Chapter14: Inductance
Section: Chapter Questions
Problem 86CP: A rectangular copper ring, of mass 100 g and resistance 0.2 1, is in a region of uniform magnetic...
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The figure shows a U-shaped conducting rail that is oriented vertically in a horizontal
magnetic field B. The rail has no electric resistance and does not move. A slide wire with
mass m and resistance R can slide up and down without friction while maintaining
electrical contact with the rail. The slide wire is released from rest.
(Figure 1)
Part A
The slide wire reaches a terminal speed vterm. Find an expression for vterm-
Express your answer in terms of given quantities and appropriate constants.
Uterm =
Submit
Request Answer
Part B
Determine the value of a terminal velocity vterm if l = 20 cm , m =7.0 g, R = 0.10 N, and B = 0.51 T
Express your answer to two significant figures and include the appropriate units.
Figure
< 1 of 1>
Vterm =
Value
Units
Submit
Request Answer
Provide Feedback
XE.
x x x x
Transcribed Image Text:The figure shows a U-shaped conducting rail that is oriented vertically in a horizontal magnetic field B. The rail has no electric resistance and does not move. A slide wire with mass m and resistance R can slide up and down without friction while maintaining electrical contact with the rail. The slide wire is released from rest. (Figure 1) Part A The slide wire reaches a terminal speed vterm. Find an expression for vterm- Express your answer in terms of given quantities and appropriate constants. Uterm = Submit Request Answer Part B Determine the value of a terminal velocity vterm if l = 20 cm , m =7.0 g, R = 0.10 N, and B = 0.51 T Express your answer to two significant figures and include the appropriate units. Figure < 1 of 1> Vterm = Value Units Submit Request Answer Provide Feedback XE. x x x x
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