To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current needed in a 300-loop-per-meter circular coil 0.660 m in radius to create a 1.20-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 0.650×10−15 m in radius carrying 2.1×104 A . What is the field at the center of such a loop? 2.39 x 103 A and 1.02 x 1013 T 2.39 x 10 3 A and 2.04 x 10 13 T 3.183 x 10 3 A and 2.04 x 10 13 T 3.183 x 10 3 A and 1.02 x 10 13 T None of the above
To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current needed in a 300-loop-per-meter circular coil 0.660 m in radius to create a 1.20-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 0.650×10−15 m in radius carrying 2.1×104 A . What is the field at the center of such a loop? 2.39 x 103 A and 1.02 x 1013 T 2.39 x 10 3 A and 2.04 x 10 13 T 3.183 x 10 3 A and 2.04 x 10 13 T 3.183 x 10 3 A and 1.02 x 10 13 T None of the above
Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 63AP: An electron of kinetic energy 2000 eV passes between parallel plates that are 1.0 an apart and kept...
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To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current needed in a 300-loop-per-meter circular coil 0.660 m in radius to create a 1.20-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 0.650×10−15 m in radius carrying 2.1×104 A . What is the field at the center of such a loop?
2.39 x 103 A and 1.02 x 1013 T
2.39 x 10 3 A and 2.04 x 10 13 T
3.183 x 10 3 A and 2.04 x 10 13 T
3.183 x 10 3 A and 1.02 x 10 13 T
None of the above
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