Electromagnetic Field Theory - Study Mode
[#201] In a medium if ε, µ, and σ are constant through out the medium, then it is known as:
Correct Answer
(D) Homogeneous medium
[#202] If φ = 2x 2 y - xz 3 , then the Laplacian of φ is
Correct Answer
(C) 4y - 6xz
[#203] The loss-less, quarter wavelength long, RF transmission of characteristic impedance 50 Ω is terminated in pure resistive load impedance 100 Ω, the input impedance is:
Correct Answer
(C) 25 Ω
[#204] A loss-less 50 ohm transmission line is terminated in (A) 25 ohm and (B) 100 ohm loads. Which one of the following statements would be correct, if the voltage standing wave patterns measured in the two cases are compared?
Correct Answer
(D) The two patterns will be identical except for a relative spatial shift of quarter wavelength in the two cases
[#205] The main components of atmosphere responsible for absorption of electromagnetic waves are
Correct Answer
(C) oxygen and water vapour