An MRI technician moves her hand from a region of very low magnetic field strength ( approximately zero) into the MRI scanner's field in a quick motion, taking 3.1 milliseconds. The MRI is essentially a solenoid, with 1500 loops of wire. By doing so, a current of 0.15 milliAmps is induced in her wedding ring. If her wedding ring has a diameter of 1.95 cm and it has measured resistance of 119 Ohms, what is the magnetic field in the MRI.
An MRI technician moves her hand from a region of very low magnetic field strength ( approximately zero) into the MRI scanner's field in a quick motion, taking 3.1 milliseconds. The MRI is essentially a solenoid, with 1500 loops of wire. By doing so, a current of 0.15 milliAmps is induced in her wedding ring. If her wedding ring has a diameter of 1.95 cm and it has measured resistance of 119 Ohms, what is the magnetic field in the MRI.
Chapter8: Electromagnetism And Em Waves
Section: Chapter Questions
Problem 10Q
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Question
An MRI technician moves her hand from a region of very low magnetic field strength ( approximately zero) into the MRI scanner's field in a quick motion, taking 3.1 milliseconds. The MRI is essentially a solenoid, with 1500 loops of wire. By doing so, a current of 0.15 milliAmps is induced in her wedding ring. If her wedding ring has a diameter of 1.95 cm and it has measured resistance of 119 Ohms, what is the magnetic field in the MRI.
![Forthis problenyou must DOTH identify the errors (cirdle them) and corredtly sohre the
problen Identifying all errars and correctly solving this-with all steps shoum-is worth B
poins.
2 AnMRI techicinmove ber band framaegion of very low magnetic field strength
epproximately zero) into the bRI Scaner's field in a quick motion, taking 3.1l miliseconds.
The MRI is essentially a soleoid, with 1500 loops of wire. By doing so, a corent of 0.15
liAmps is induced in her wedding ring. If her wedding ring has a dizmeter of195 am and
it bas a measured resistance of 119 Ctms, wat is the magnetic field in the MRI?
qualitative Representation
Variables (Known and Unknown] and Equations
と-3.1ms
I= 0.15 mA
と-1,95cm
R=11952
B=?
V IR
at
d=l,95 cm N=1500
0=BACOSO
Solution
V =IR=(0,15x1o)(119)
co,01785V = E
Q =BAcoso
(B)T(1.95)= 1.94598
ProF
A17918.859B
%3D
0,0175=17918.859B
B.1X1D
B= 3.03x10-9T
↑](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd17be823-b511-4138-b1ab-72ddbf846f2e%2Fd620dec8-3b1c-49d8-ab87-33f73e0e6cbb%2Fn3m7el_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Forthis problenyou must DOTH identify the errors (cirdle them) and corredtly sohre the
problen Identifying all errars and correctly solving this-with all steps shoum-is worth B
poins.
2 AnMRI techicinmove ber band framaegion of very low magnetic field strength
epproximately zero) into the bRI Scaner's field in a quick motion, taking 3.1l miliseconds.
The MRI is essentially a soleoid, with 1500 loops of wire. By doing so, a corent of 0.15
liAmps is induced in her wedding ring. If her wedding ring has a dizmeter of195 am and
it bas a measured resistance of 119 Ctms, wat is the magnetic field in the MRI?
qualitative Representation
Variables (Known and Unknown] and Equations
と-3.1ms
I= 0.15 mA
と-1,95cm
R=11952
B=?
V IR
at
d=l,95 cm N=1500
0=BACOSO
Solution
V =IR=(0,15x1o)(119)
co,01785V = E
Q =BAcoso
(B)T(1.95)= 1.94598
ProF
A17918.859B
%3D
0,0175=17918.859B
B.1X1D
B= 3.03x10-9T
↑
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