« previous next »

Author Question: 18. ____________ are hollow tubes used to conduct electromagnetic energy at microwave frequencies. ... (Read 67 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Jul 28, 2018
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

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Energy flow through an ecosystem. Energy flow through an ecosystem.
Energy of Electron according to Electron Shells Energy of Electron according to Electron Shells
Longer regions have more crossovers and thus higher recombinant frequencies Longer regions have more crossovers and thus higher recombinant frequencies
Tummy rock to release energy blocks in the torso and head. Tummy rock to release energy blocks in the torso and head.
How much energy is required to form 141.8 g of Cl2, according to the reaction below? The molar ... How much energy is required to form 141.8 g of Cl2, according to the reaction below? The molar ...
Energy In, Energy Out Energy In, Energy Out
Video: Conduction of action potentials

For a complete list of videos, visit our video library