what is the relationship between the static magnetic field and ferromagnetic in MRI?
what is the relationship between the static magnetic field and ferromagnetic in MRI?
Homework Answers
The static magnetic field attracts the ferromagnetic objects towards the center of bore of MRI scanner and these projectiles (like medical equipments ,hairpin , coin, steel oxygen tanks etc ) could become dangerous.This could lead to accidents. Thats why safety precautions are necessary in handling MRI scanner.
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what is the relationship between the static magnetic field and
ferromagnetic in MRI?
the relationship between the static magnetic field and translational force in MRI ?
the relationship between the static magnetic field and translational force in MRI ?
a) A metal ring of 2.40 cm diameter moves into the magnetic field of an MRI...
a) A metal ring of 2.40 cm diameter moves into the magnetic field of an MRI scanner in 0.30 s from where the magnetic field is zero. The magnetic field in the MRI is 1.90 T and the plane of the ring is perpendicular to this field. Determine the voltage induced in the ring. b) If the ring in the problem above has a resistance of 0.009 Ω, what is the current induced in the ring, and in what direction...
The magnetic field produced by the solenoid in a magnetic resonance imaging (MRI) system designed for...
The magnetic field produced by the solenoid in a magnetic resonance imaging (MRI) system designed for measurements on whole human bodies has a field strength of 6.86 T, and the current in the solenoid is 3.47 × 102 A. What is the number of turns per meter of length of the solenoid?
6. An solenoid in an MRI machine produces an axial magnetic field of 3.5 T. If...
6. An solenoid in an MRI machine produces an axial magnetic field of 3.5 T. If the length of the MRI is 1.4 m and it is wound with 800 turns of wire, what current is needed to produce this field?
In an MRI machine, a large magnetic field is generated by the cylindrical solenoid surrounding the...
In an MRI machine, a large magnetic field is generated by the cylindrical solenoid surrounding the patient. If the current is 4 kA, the magnet depth is 3m and superconducting wire is 1cm wide, what is the magnetic field that the patient experiences?
To see why an MRI utilizes iron to increase the magnetic field created by a coil,...
To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current needed in a 460–loop–per–meter circular coil 0.600 m in radius to create a 1.40–T field (typical of an MRI instrument) at its center with no iron present. The magnetic field of a proton is approximately like that of a circular current loop 6.800×10-16 m in radius carrying 1.02×104 A. What is the field at the center of such a loop?
The magnetic field produced by the solenoid in a magnetic resonance imaging (MRI) system designed for...
The magnetic field produced by the solenoid in a magnetic resonance imaging (MRI) system designed for measurements on whole human bodies has a field strength of 8.0 T, and the current in the solenoid is 1.5 102 A. What is the number of turns per meter of length of the solenoid? Note that the solenoid used to produce the magnetic field in this type of system has a length that is not very long compared to its diameter. Because of...
To see why an MRI utilizes iron to increase the magnetic field created by a coil,...
To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current in amperes needed in a 420-loop-per-meter circular coil 0.660 m in radius to create a 1.30 T field (typical of an MRI instrument) at its center with no iron present. A The magnetic field of a proton is approximately like that of a circular current loop 0.650 ✕ 10−15 m in radius carrying 1.05 ✕ 104 A. What is the field...
An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scammer's 2.00 T field with his fingers pointing in the direction of the field
An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scammer's 2.00 T field with his fingers pointing in the direction of the field. His wedding ring has a diameter of 2.05 cm and it takes 0.35 s to move it into the field. Randomized Variables d=2.05 cm t=0.35s Part (a) What average current is induced in the ring in A if its resistance is 0.0100 Ω? Part (b) What average power is dissipated in mW? Part...
Magnetic Resonance Imaging An MRI (magnetic resonance imaging) solenoid produces a magnetic field of 1.4 T...
Magnetic Resonance Imaging An MRI (magnetic resonance imaging) solenoid produces a magnetic field of 1.4 T . The solenoid is 2.5m long, 1.0 m in diameter, and wound with insulated wires 2.2 mm in diameter. Find the current that flows in the solenoid. (Your answer should be rather large. A typical MRI solenoid uses niobium-titanium wire kept at liquid helium temperatures, where it is superconducting.)
6. An solenoid in an MRI machine produces an axial magnetic field of 3.5 T. If the length of the MRI is 1.4 m and it is wound with 800 turns of wire, what current is needed to produce this field?
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