Electronics and Communication Engineering - Electromagnetic Field Theory

46.
300 to 3000 MHz frequency is categorized as
MF
HF
UHF
SHF
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
The gain of an antenna with a circular aperture of diameter 3 metres at a frequency of 5 GHz, will be
2.4674
24.674
246.74
24674
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
The gain of a current element is
0 dB
1.67 dB
1.76 dB
3 dB
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
Poynting theorem relates the electric intensity E, magnetic intensity H to the rate of energy flow per unit area at a point P as
P = E/H
P = H/E
E = 1/E x H
P = E x H
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
The absorption of EM wave by the atmosphere depends on
polarization of waves
frequency in use
dist. from Ty
height of antenna
Answer: Option
Explanation:
No answer description is available. Let's discuss.