A small, closely wound coil has N turns, area A, and resistance R. The coil is initially in a uniform magnetic field that has magnitude B and a direction perpendicular to the plane of the loop. The coil is then rapidly pulled out of the field so that the flux through the coil is reduced to zero in time At. Part A What are the magnitude of the average emf Eav and average current Iav induced in the coil? Express your answer in terms of the variables N, A, R, B, and At. ? Eav, Iav = Part B The total charge Q that flows through the coil is given by Q = IayAt. Derive an expression for Q in terms of N, A, B, and R. Note that Q does not depend on At. Express your answer in terms of the variables N, A, R, and B. νΠ ΑΣφ ? Q =

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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A small, closely wound coil has N turns, area A, and
resistance R. The coil is initially in a uniform magnetic
field that has magnitude B and a direction
perpendicular to the plane of the loop. The coil is then
rapidly pulled out of the field so that the flux through
the coil is reduced to zero in time At.
Part A
What are the magnitude of the average emf Eav and average current Iav induced in the coil?
Express your answer in terms of the variables N, A, R, B, and At.
?
Eav, Iav =
Part B
The total charge Q that flows through the coil is given by Q = IavAt. Derive an expression for Q in terms of N, A, B, and R.
Note that Q does not depend on At.
Express your answer in terms of the variables N, A, R, and B.
ΑΣφ
?
Q =
Transcribed Image Text:A small, closely wound coil has N turns, area A, and resistance R. The coil is initially in a uniform magnetic field that has magnitude B and a direction perpendicular to the plane of the loop. The coil is then rapidly pulled out of the field so that the flux through the coil is reduced to zero in time At. Part A What are the magnitude of the average emf Eav and average current Iav induced in the coil? Express your answer in terms of the variables N, A, R, B, and At. ? Eav, Iav = Part B The total charge Q that flows through the coil is given by Q = IavAt. Derive an expression for Q in terms of N, A, B, and R. Note that Q does not depend on At. Express your answer in terms of the variables N, A, R, and B. ΑΣφ ? Q =
Part C
What is Q if N = 150 turns, A = 4.50 cm?, R= 30.0 N, and B=0.200 T?
%3D
Express your answer with the appropriate units.
HA
?
Q =
Value
Units
Transcribed Image Text:Part C What is Q if N = 150 turns, A = 4.50 cm?, R= 30.0 N, and B=0.200 T? %3D Express your answer with the appropriate units. HA ? Q = Value Units
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