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GATE EC 2022: Electromagnetics Quiz 6
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Question 1
Skin depth depends on
Question 2
An electromagnetic wave is travelling at an angle
with respect to the Z-axis within a medium with dielectric permittivity
and magnetic permeability
. The magnetic field is given as
=
Re
The wavelength (in meters) and
(in degrees) are respectively given by







The wavelength (in meters) and

Question 3
There is a 20% reduction in amplitude of a wave travelling through a lossy non-magnetic medium, per meter. The wave is operated at 20 MHz and the electric field leads the magnetic field by 25 degrees. What is the value of β?
Question 4
A dipole having
is located at the origin in free space and aligned so that its moment is in the uzdirection. The E at point (r =1, 450 ,
) is


Question 5
The EM wave which does not propagate through a rectangular waveguide with a = 30 mm and b = 15 mm is:
Question 6
The magnetic field of an EM wave travelling in free space is given by
The wave is
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Oct 25ESE & GATE EC