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Electromagnetic TheoryEM Wave Fundamentals

The speed of an electromagnetic wave in a lossless medium of permeability mu and permittivity epsilon is?

  • A1/sqrt(mu epsilon)
  • Bsqrt(mu epsilon)
  • Cmu/epsilon
  • Depsilon/mu
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Correct Answer: A. 1/sqrt(mu epsilon)
Explanation: The phase velocity in a lossless homogeneous medium is v=1/sqrt(με).
Reference: Standard electromagnetic theory: em wave fundamentals
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