Electronics and Communication Engineering - Electromagnetic Field Theory

31.
The number of lobes on each side of a 31 resonant antenna will be
2
3
4
6
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
Analysis of EM wave in waveguide based on
circuit theory
field theory
optical theory
both (a) and (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
The main difference between the broadside arrays and end fire arrays is that
individual elements are fed with same current in broadside arrays and of different magnitude in end fire arrays
in broadside arrays the elements are equidistant whereas in end fire array the distance between elements increases progressively
the total number of elements in broadside array is always one and a half times that of elements in end fire arrays
in broadside array the individual elements are fed in, out of phase by 180° whereas in end fire array individual elements are fed with currents of equal magnitude but their phases vary progressively along the line in such a way as to make the entire arrangement substantially unidirectional
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
The charges between a hollow and solid metal spheres reside
through out in both
on outer surface in hollow and through out in solid
on the outer surface in both
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
Maximum usable frequency is [fmuf]
fc sec i
fc cos i
fc sin i
fc sec i
Answer: Option
Explanation:
No answer description is available. Let's discuss.