An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 2.50 T field withhis fingers pointing in the direction of the field. His wedding ring has a diameter of 2.25 cm, and it takes 0.400 s to move itinto the field.(a) What average current is induced in the ring if its resistance is 0.0100 N? (Enter the magnitude in amperes.)A(b) What average power is dissipated (in W)?W(c)What average magnetic field is induced at the center of the ring? (Enter the magnitude in teslas.)(d) What is the direction of this induced magnetic field relative to the MRI's field?O parallelO antiparallelO The magnitude is zero.

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An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 2.50 T field with his fingers pointing in the direction of the field. His wedding ring has a diameter of 2.25 cm, and it takes 0.400 s to move it into the field. (a) What average current is induced in the ring if its resistance is 0.0100 A? (Enter the magnitude in amperes.) (b) What average power is dissipated (in W)? (e) What average magnetic field is induced at the center of the ring? (Enter the magnitude in teslas.) (d) What is the direction of this induced magnetic field relative to the MRI's field? O parallel antiparallel The magnitude is zero.

An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 2.50 T field with his fingers pointing in the direction of the field. His wedding ring has a diameter of 2.25 cm, and it takes 0.400 s to move it into the field. (a) What average current is induced in the ring if its resistance is 0.0100 A? (Enter the magnitude in amperes.) (b) What average power is dissipated (in W)? (e) What average magnetic field is induced at the center of the ring? (Enter the magnitude in teslas.) (d) What is the direction of this induced magnetic field relative to the MRI's field? O parallel antiparallel The magnitude is zero.

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Magnetic Fields

Section: Chapter Questions

Problem 26P: Consider the system pictured in Figure P28.26. A 15.0-cm horizontal wire of mass 15.0 g is placed...

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An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 2.50 T field with
his fingers pointing in the direction of the field. His wedding ring has a diameter of 2.25 cm, and it takes 0.400 s to move it
into the field.
(a) What average current is induced in the ring if its resistance is 0.0100 N? (Enter the magnitude in amperes.)
A
(b) What average power is dissipated (in W)?
W
(c)
What average magnetic field is induced at the center of the ring? (Enter the magnitude in teslas.)
(d) What is the direction of this induced magnetic field relative to the MRI's field?
O parallel
O antiparallel
O The magnitude is zero.

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