University of Utah Introduction to Electromagnetics Lecture 1: Review - PowerPoint

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					         University of Utah
  Introduction to Electromagnetics
Lecture 22: Faraday and Lenz’s Laws




                   • Dr. Cynthia Furse
                  • University of Utah
    • Department of Electrical and Computer Engineering
             • www.ece.utah.edu/~cfurse
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       Faraday’s and Lenz’ Laws
• Faraday’s Law:
  – Changing magnetic field produces electric    field
    (and thus voltage and current)
• Lenz’ Law
  – A changing magnetic field produces another
    magnetic field that opposes the change




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