« previous next »

Author Question: 18. ____________ are hollow tubes used to conduct electromagnetic energy at microwave frequencies. ... (Read 19 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?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Light Waves in the Electromagnetic Spectrum Light Waves in the Electromagnetic Spectrum
Energy Transfer Processes: Forced Convection Energy Transfer Processes: Forced Convection
Radiative forcing expresses change in energy input over time Radiative forcing expresses change in energy input over time
The distribution of high-energy, nutritious biscuits was a lifeline in the first days after the 2010 The distribution of high-energy, nutritious biscuits was a lifeline in the first days after the 2010
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
Energy homeostasis is regulated primarily by the brain, gastrointestinal tract, other organ systems, Energy homeostasis is regulated primarily by the brain, gastrointestinal tract, other organ systems,
Video: How to find out if a population is evolving?

For a complete list of videos, visit our video library