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 53 of 63

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Q521.
Phase velocity of waves propagating in a hollow metal waveguide is

a.

greater than the group velocity

b.

less than the velocity of light in free space

c.

equal to the velocity of light in free space

d.

equal to group velocity

Discuss
Answer: (a).greater than the group velocity
Q522.
Good smoothing factor of a coil depends on

a.

inductance of the coil

b.

terminal voltage

c.

cross-sectional area of the wire of the coil

d.

property of the wire of the coil

Discuss
Answer: (d).property of the wire of the coil
Q523.
A TEM wave incident obliquely on a dielectric boundary with ฮตr1 = 2 and ฮตr2 = 1, the angle of incidence for total reflection is

a.

30°

b.

60°

c.

45°

d.

90°

Discuss
Answer: (c).45°
Q524.
The total field produced by an antenna array system at a distance from it is

a.

sum of the field produced by the individual antennas of the array system

b.

directional gain of antenna

c.

linear antenna gain

d.

vector sum of the field produced by the individual antennas of the array system

Discuss
Answer: (d).vector sum of the field produced by the individual antennas of the array system
Q525.
A perfect conductor is a perfect absorber of electromagnetic waves.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q526.
In a lead acid cell the density of the acid gives an indication of

a.

the level of the acid

b.

the eventual damages caused to the plates

c.

the charge of the battery

d.

the e.m.f. of the battery

Discuss
Answer: (c).the charge of the battery
Q527.
A (0.75 - j50) ohm load is connected to a coaxial transmission line of Z0 = 75 ohms at a frequency of 10 GHz Which of the following will be the best method of matching?

a.

Connecting an inductance at the end

b.

Connecting a short circuited stub at the load

c.

Connecting a capacitance at some distance from the load

d.

Connecting a short circuited stub at some specified distance from the load

Discuss
Answer: (d).Connecting a short circuited stub at some specified distance from the load
Q528.
In a four element Yagi-Uda antenna

a.

there is one driven element, one director and two reflectors

b.

there is one driven element, two directors and one reflector

c.

there are two driven elements, one director and two reflectors

d.

all the 4 elements are driven element

Discuss
Answer: (b).there is one driven element, two directors and one reflector
Q529.
The statement that the line integral of magnetic field about any closed path is exactly equal to the direct current enclosed by that path, is known as

a.

Ampere's circuital law

b.

Coulomb's law

c.

Electrostatic's theory

d.

None of the above

Discuss
Answer: (a).Ampere's circuital law
Q530.
Transverse magnetic (TM) waves have

a.

magnetic field component H in the direction of propagation

b.

electric field component E in the direction of propagation

c.

magnetic field component H in the direction of propagation and no component of electric field E in this direction

d.

electric field component E in the direction of propagation and no component of magnetic field H in this direction

Discuss
Answer: (d).electric field component E in the direction of propagation and no component of magnetic field H in this direction
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