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GATE EC 2018 Exam: Electromagnetics Quiz 4
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Question 1
In the circuit using an ideal opamp, the 3-dB cut-off frequency (in Hz) is __________.
Question 2
Which of the following statements is true regarding the fundamental mode of the metallic waveguides shown?
Question 3
The modes in a rectangular waveguide are denoted by TEmn/TMmn where m and n are the eigen numbers along the larger and smaller dimensions of the waveguide respectively. Which one of the following statements is TRUE?
Question 4
The electric field of a uniform plane electromagnetic wave in free space, along the positive x direction, is given by 
. The frequency and polarization of the wave, respectively, are
. The frequency and polarization of the wave, respectively, are Question 5
The phase velocity of an electromagnetic wave propagating in a hallow metallic rectangular waveguide in the TE10 mode is
Question 6
Which one of the following does represent the electric field lines for the TE02 mode in the cross-section of a hollow rectangular metallic waveguide?
Question 7
The longitudinal component of the magnetic field inside an air-filled rectangular waveguide made of a perfect electric conductor is given by the following expression
(A/m)
The cross-sectional dimensions of the waveguide are given as a = 0.08 m and b = 0.033 m. The mode of propagation inside the waveguide is
(A/m)The cross-sectional dimensions of the waveguide are given as a = 0.08 m and b = 0.033 m. The mode of propagation inside the waveguide is
Question 8
A rectangular waveguide having TE10 mode as dominant mode is having a cutoff frequency of 18-GHz for the TE30 mode. The inner broad-wall dimension of the rectangular waveguide is:
Question 9
Medium 1 has the electrical permittivity 
farad/m and occupies the region to the left of x = 0 plane. Medium 2 has the electrical permittivity 
farad/m and occupies the region to the right of x = 0 plane. If 
in medium 1 is 
volt/m, then E2 in medium 2 is
farad/m and occupies the region to the left of x = 0 plane. Medium 2 has the electrical permittivity farad/m and occupies the region to the right of x = 0 plane. If in medium 1 is volt/m, then E2 in medium 2 is Question 10
The 
field (in A/m) of a plane wave propagating in free space is given by
H' = 5(3)1/2/ηocos(ωt-βz) + 5/ηo sin (ωt-βz)α
The time average power flow density in Watts is:
field (in A/m) of a plane wave propagating in free space is given by H' = 5(3)1/2/ηocos(ωt-βz) + 5/ηo sin (ωt-βz)α
The time average power flow density in Watts is:
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