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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 3
26.
Microwave signals transmitted towards the sky are
strongly absorbed by the ionosphere
strongly reflected by the ionosphere
transmitted through the ionosphere
unable to reach the ionosphere because of strong absorption in the lower atmosphere
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Radiation intensity does not depend upon
the antenna direction
antenna width
both (a) and (b)
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Δ2V = - r/E is known as __________ equation
Poisson
Fourier
Laplace
Maxwell
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
A vertical earthed antenna is resonant when its physical height is equal to
λ
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Which of the following is a vector quantity?
Standing wave ratio
Reflection coefficient
Gain
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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