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 36 of 63

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Q351.
Poynting theorem relates the electric intensity E, magnetic intensity H to the rate of energy flow per unit area at a point P as

a.

P = E/H

b.

P = H/E

c.

E = 1/E x H

d.

P = E x H

Discuss
Answer: (d).P = E x H
Q352.
The absorption of EM wave by the atmosphere depends on

a.

polarization of waves

b.

frequency in use

c.

dist. from Ty

d.

height of antenna

Discuss
Answer: (b).frequency in use
Q353.
In end fire array the principle direction of radiation

a.

is perpendicular to the array axis

b.

is perpendicular to the array axis and also to the plane containing the array elements

c.

coincides with the direction of the array

d.

is at 45° to the direction of array axis

Discuss
Answer: (c).coincides with the direction of the array
Q354.
The gain of an half wavelength antenna is

a.

2.15 dB

b.

10 dB

c.

1.78 dB

d.

100 dB

Discuss
Answer: (a).2.15 dB
Q355.
Which of the following does not characterize a ferromagnetic material?

a.

Coercivity

b.

Permeability

c.

Permittivity

d.

Reluctance

Discuss
Answer: (c).Permittivity
Q356.
Solution of Laplace equations, which are continuous through the second derivative, are called

a.

bessel functions

b.

odd functions

c.

harmonic functions

d.

fundamental functions

Discuss
Answer: (c).harmonic functions
Q357.
The skip distance does not depends upon

a.

the power transmitted

b.

type of wave propagation

c.

angle of beaming of the wave

d.

frequency of the signal transmitted

Discuss
Answer: (b).type of wave propagation
Q358.
Which one of the following statement is correct?

a.

Both Laplace's (L) and Poisson's (P) equation are non linear

b.

L is non linear but P is linear

c.

L is linear but P is non linear

d.

L, P both is linear

Discuss
Answer: (a).Both Laplace's (L) and Poisson's (P) equation are non linear
Q359.
Frequency band used for radar is generally

a.

VLF

b.

VHF

c.

UHF

d.

EHF

Discuss
Answer: (c).UHF
Q360.
In case of antenna the lower value of Q indicates

a.

higher bandwidth

b.

lower bandwidth

c.

higher distortion

d.

lower distortion

Discuss
Answer: (a).higher bandwidth
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