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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 11
21.
A TEM wave incident obliquely on a dielectric boundary with εr1 = 2 and εr2 = 1, the angle of incidence for total reflection is
30°
60°
45°
90°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The total field produced by an antenna array system at a distance from it is
sum of the field produced by the individual antennas of the array system
directional gain of antenna
linear antenna gain
vector sum of the field produced by the individual antennas of the array system
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
A perfect conductor is a perfect absorber of electromagnetic waves.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
In a lead acid cell the density of the acid gives an indication of
the level of the acid
the eventual damages caused to the plates
the charge of the battery
the e.m.f. of the battery
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
A (0.75 - j50) ohm load is connected to a coaxial transmission line of Z0 = 75 ohms at a frequency of 10 GHz Which of the following will be the best method of matching?
Connecting an inductance at the end
Connecting a short circuited stub at the load
Connecting a capacitance at some distance from the load
Connecting a short circuited stub at some specified distance from the load
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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