Current Attempt in Progress Magnetic resonance imaging (MRI) is a medical technique for producing "pictures" of the interior of the body. The patient is placed within a strong magnetic field. One safety concern is what would happen to the positively and negatively charged particles in the body fluids if an equipment failure caused the magnetic field to be shut off suddenly. An induced emf could cause these particles to flow, producing an electric current within the body. Suppose the largest surface of the body through which flux passes has an area of 0.037 m² and a normal that is parallel to a magnetic field of 1.9 T. Determine the smallest time period during which the field can be allowed to vanish if the magnitude of the average induced emf is to be kept less than 0.0091 V. B (out of screen) Units V

Current Attempt in Progress Magnetic resonance imaging (MRI) is a medical technique for producing "pictures" of the interior of the body. The patient is placed within a strong magnetic field. One safety concern is what would happen to the positively and negatively charged particles in the body fluids if an equipment failure caused the magnetic field to be shut off suddenly. An induced emf could cause these particles to flow, producing an electric current within the body. Suppose the largest surface of the body through which flux passes has an area of 0.037 m² and a normal that is parallel to a magnetic field of 1.9 T. Determine the smallest time period during which the field can be allowed to vanish if the magnitude of the average induced emf is to be kept less than 0.0091 V. B (out of screen) Units V

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter29: Magnetic Fields

Section: Chapter Questions

Problem 29.12OQ

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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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Magnetic resonance imaging (MRI) is a medical technique for producing "pictures" of the interior of the body. The patient is placed
within a strong magnetic field. One safety concern is what would happen to the positively and negatively charged particles in the body
fluids if an equipment failure caused the magnetic field to be shut off suddenly. An induced emf could cause these particles to flow,
producing an electric current within the body. Suppose the largest surface of the body through which flux passes has an area of 0.037
m² and a normal that is parallel to a magnetic field of 1.9 T. Determine the smallest time period during which the field can be allowed to
vanish if the magnitude of the average induced emf is to be kept less than 0.0091 V.
B (out of screen)
i
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