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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 11
11.
Which of the following is abnormal variation in ionosphere?
Diurnal variation
Seasonal variation
Ionospheric storms
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Laplace equation in cylindrical co-ordinates is given by
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Troposphere is the upper part of the Earth's atmosphere which absorbs large quantities of Sun's radiations.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
For resonant long wire antenna 'n' half wavelength long in free space, if 'n' is increased then inclination of the major lobe with wire axis will __________ .
increases
decreases
remains same
none
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
The maximum effective aperture of λ/2 (half-wave) antenna is
0.013 λ2
0.13 λ2
1.3 λ2
13 λ2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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