3 MRI Coil Suppose you want to make an MRI (Magnetic Resonance Imaging) system for medical purposes that has a field strength of 1.5T. In order to fit a patient inside the diameter of the solenoid must be 80cm. You would like to coil to be 1m long. The magnet wire you plan to use to make the coil is rated to take 1.0A. 1. In order to make the magnet 1m long, how many total winds are needed? 2. What is total length of wire? 3. The magnet wire you plan to use as a diameter of 0.72mm and is made of copper which has a resistivity of 1.72 x 10-8m. What is the resistance of the coil? 4. How much power does the coil consume when 1.0A is passing though it?

3 MRI Coil Suppose you want to make an MRI (Magnetic Resonance Imaging) system for medical purposes that has a field strength of 1.5T. In order to fit a patient inside the diameter of the solenoid must be 80cm. You would like to coil to be 1m long. The magnet wire you plan to use to make the coil is rated to take 1.0A. 1. In order to make the magnet 1m long, how many total winds are needed? 2. What is total length of wire? 3. The magnet wire you plan to use as a diameter of 0.72mm and is made of copper which has a resistivity of 1.72 x 10-8m. What is the resistance of the coil? 4. How much power does the coil consume when 1.0A is passing though it?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section: Chapter Questions

Problem 102A

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

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3 MRI Coil
Suppose you want to make an MRI (Magnetic Resonance Imaging) system for medical purposes that has a field
strength of 1.5T. In order to fit a patient inside the diameter of the solenoid must be 80cm. You would like to coil
to be 1m long. The magnet wire you plan to use to make the coil is rated to take 1.0A.
1. In order to make the magnet 1m long, how many total winds are needed?
2. What is total length of wire?
3. The magnet wire you plan to use as a diameter of 0.72mm and is made of copper which has a resistivity of
1.72 x 10-8m. What is the resistance of the coil?
4. How much power does the coil consume when 1.0A is passing though it?

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