GATE 2019: Electromagnetics Quiz 6

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Question 1

Skin depth depends on

• Aconductivity
• Bpermeability
• Cfrequency of incident radiation
• Dall of the above

Question 2

The electronic field component of a plane wave propagating in a certain lossy medium is given by
cos(1.5t-2) V/m
The propagation constant of the medium (in) is given by

• A-0.01- j2
• B0.01+j1
• C0.01+j2 
• D0.01-j2

Question 3

For a uniform plane wave of frequency 10⁶ Hz propagating in a good conductor, the fields undergoes a change in phase of 2radians over a distance of 1m.The field is attenuated by a factor of 1/e at a distance of :-

• A
• B
• C
• D2

Question 4

The magnetic field component of n electromagnetic waves propagating through a non magnetic dielectric medium is given by
A/m
The permittivity of the medium is given by ______________

• A6.2
• B7.2
• C8.2
• D9.2

Question 5

A uniform plane wave propagating in free space has electric field intensity vector given by
V/m
The wave is

• ALeft circularly polarized
• BRight circularly polarized
• CLeft elliptically polarized
• DRight elliptically polarized

Question 6

If the magnetic field vector of a uniform plane wave is

Then the average power passing through a circular disk of radius of 5cm at in the z=2m plane is given by

• A60 mW
• B390 mW
• C125 mW
• D150 mW

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