Electromagnetic Field Theory MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Electromagnetic Field Theory, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Electromagnetic Field Theory MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Electromagnetic Field Theory mcq questions that explore various aspects of Electromagnetic Field Theory problems. Each MCQ is crafted to challenge your understanding of Electromagnetic Field Theory principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Electromagnetic Field Theory MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Electromagnetic Field Theory. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Electromagnetic Field Theory knowledge to the test? Let's get started with our carefully curated MCQs!

Electromagnetic Field Theory MCQs | Page 28 of 63

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Q271.
For EM wave propagation in free space, the free space is defined as

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q272.
A field given below can be

a.

harmonic

b.

divergence less

c.

solenoidal

d.

rotational

Discuss
Answer: (d).rotational
Q273.
If a plane electromagnetic wave satisfies the equation given below, the wave propagates in the (at an angle of 45° between the x and z direction)

a.

x-direction

b.

z-direction

c.

y direction

d.

xy plane

Discuss
Answer: (b).z-direction
Q274.
Laplace equation in cylindrical co-ordinates is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q275.
For transmission of waveform a dielectric medium of permittivity 蔚1 into a dielectric medium of lower permittivity 蔚2 , (蔚1 > 蔚2) the critical angle of incidence 胃c (relative to the interface) is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q276.
Which of the following is a better propagation mode to propagate television frequency modulation and radar signals?

a.

Satellite communication

b.

Ground propagation

c.

Polarized communication

d.

None of the above

Discuss
Answer: (a).Satellite communication
Q277.
Antenna used for T.V. broadcasting is

a.

long dipole

b.

metal horn

c.

crossed dipole

d.

log periodic

Discuss
Answer: (c).crossed dipole
Q278.
For a rectangular waveguide (a x b, a > b) to support only the TE鈧佲個 mode at wavelength which one of the following pairs of in equalities is to be satisfied?

a.

b < 位 < 2b; 位 > 2a

b.

b < 位 < 2b; 位 < 2a

c.

a < 位 < 2b; 位 < 2a

d.

a < 位 < 2b; 位 > 2a

Discuss
Answer: (d).a < 位 < 2b; 位 > 2a
Q279.
For an elliptically polarized wave incident on the interface of a dielectric at the Brewster angle the reflected wave will be

a.

elliptically polarized

b.

linearly polarized

c.

right circularly polarized

d.

left circularly polarized

Discuss
Answer: (a).elliptically polarized
Q280.
Which of the antenna is best excited by a waveguide?

a.

Horn

b.

Discone

c.

Helical

d.

Biconical

Discuss
Answer: (a).Horn
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