body to form images. a) To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current needed in a 400-loop-per-meter circular coil 0.665 m in radius to create a 1.1 T field (typica an MRI instrument) at its center with no iron present. 1= ✔A Introducing ferromagnetic materials inside coils greatly increases the magntic field inside the coil a small amount of current. Think about the value of the current you got in part (a). Is that a practic value of current to use? (b) MRIs utilize the magnetic fields of protons. The magnetic field of a proton is approximately like that of a circular current loop 6.5-10-16 m in radius carrying 1.05 104 A. What is the field at the center of such a loop? B= T

body to form images. a) To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current needed in a 400-loop-per-meter circular coil 0.665 m in radius to create a 1.1 T field (typica an MRI instrument) at its center with no iron present. 1= ✔A Introducing ferromagnetic materials inside coils greatly increases the magntic field inside the coil a small amount of current. Think about the value of the current you got in part (a). Is that a practic value of current to use? (b) MRIs utilize the magnetic fields of protons. The magnetic field of a proton is approximately like that of a circular current loop 6.5-10-16 m in radius carrying 1.05 104 A. What is the field at the center of such a loop? B= T

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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