Electromagnetic Field Theory - Study Mode
[#146] The virtual height of an ionospheric layer is __________ true height
Correct Answer
(C) Higher than
[#147] The transmitting antennas for lower frequencies (below 500 kHz) are generally
Correct Answer
(A) Vertical grounded wire type
[#148] Which of the following will increase the antenna radiation efficiency?
Correct Answer
(C) Top loading of antenna
[#149] According to maximum power transfer theorem, the maximum power is absorbed by one network from another network when
Correct Answer
(B) The impedance of one is the complex conjugate of the other
[#150] Tropospheric scatter propagation is not subject to any fading.
Correct Answer
(B) False