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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 4
36.
The measure of mismatch between the load and the transmission line is known as
directivity
Gain
standing wave ratio
reflection coefficient
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Ionospheric storm causes an abnormal decrease in the critical frequency.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Which of the following is best excited from a waveguide?
Discone
Helical
Biconical
Horn
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
In a vertical earthed antenna the base input impedance will be inductive for a height
less than
between
between
more than
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
The frequencies in ultra high frequency range are propagated by means of __________ waves
surface
ground
sky
space
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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