Author Question: 18. ____________ are hollow tubes used to conduct electromagnetic energy at microwave frequencies. ... (Read 15 times)

tfester

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18. ____________ are hollow tubes used to conduct electromagnetic energy at microwave frequencies.
 
  A. Antennas
  B. Transmission lines
  C. Cables
  D. Waveguides

Question 2

What is one of the simplest and yet most useful measuring instruments at very high frequencies?
 
  A. Time-domain reflectometry
  B. Slotted line
  C. Double-stub tuner
  D. Balun



sultansheikh

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Answer to Question 1

D

Answer to Question 2

B



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