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Electromagnetic Induction and Radiation

  • Jay Newman
Chapter

In this chapter we generalize our discussion of magnetic fields in the previous chapter to include time-varying magnetic fields. A new phenomenon arises, known as electromagnetic induction, in which a time-varying magnetic field actually produces an electric field. This is described by a new fundamental law of electromagnetism known as Faraday’s law. nuclear magnetic resonance (NMR) is discussed in some detail as an application of this new physics. We also discuss the use of NMR techniques to allow medical imaging within the human body, a tremendously growing and beneficial method to image soft body tissue in three dimensions with remarkably high resolution. As NMR imaging developed and became clinically used, the medical community quickly decided to change the name of the method to Magnetic Resonance Imaging (MRI), dropping the term nuclear, present in NMR because of the role of nuclear magnetic moments but having the incorrect connotation of nuclear energy and radiation. An...

Keywords

Magnetic Field Nuclear Magnetic Resonance Electron Spin Resonance Magnetic Flux Nuclear Magnetic Resonance Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Jay Newman
    • 1
  1. 1.Department of Physics and AstronomyUnion CollegeSchenectadyUSA

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