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Electromagnetic TheoryEM Wave Fundamentals

In a source-free lossless homogeneous medium, electromagnetic waves are?

  • ATransverse, with E and H perpendicular to the direction of propagation
  • BPurely longitudinal with E parallel to propagation
  • CPurely electrostatic
  • DUnable to carry energy
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Correct Answer: A. Transverse, with E and H perpendicular to the direction of propagation
Explanation: Uniform plane electromagnetic waves in a source-free isotropic medium have mutually perpendicular E, H and propagation directions.
Reference: Standard electromagnetic theory: em wave fundamentals
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