Engineering, 22.09.2020 03:01 bbostter1131
In unguided medium (free space), the electromagnetic (EM) signal wave spreads as it leaves the transmit antenna. Since the power of the EM signal resides in the surface area of the wave front, signal power is described as signal power density (i. e., watts per area).
True
False
The spreading of an electromagnetic (EM) signal in an unguided medium such as air, weakens the EM signal therefore causing signal attenuation.
True
False
Answers: 2
Another question on Engineering
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
Engineering, 04.07.2019 18:20
Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false
Answers: 3
Engineering, 04.07.2019 19:10
Which of the following is the most important advantage of a large field of view? a. allows larger areas to be examined b. relieves eyestrain c. minimizes parallax errors. d. increases precision in proportion to the in- crease in field of view
Answers: 2
Engineering, 06.07.2019 04:20
Derive the 2-d finite difference equation for a uniform grid for a node: a) at a plane surface with a uniform heat flux b) at an internal corner with convection
Answers: 1
You know the right answer?
In unguided medium (free space), the electromagnetic (EM) signal wave spreads as it leaves the trans...
Questions
History, 06.07.2019 19:30
Biology, 06.07.2019 19:30
Social Studies, 06.07.2019 19:30
Biology, 06.07.2019 19:30
Mathematics, 06.07.2019 19:30
History, 06.07.2019 19:30
English, 06.07.2019 19:30
