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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

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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