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 3 of 63

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Q21.
Which of the following relations is correct?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q22.
In case of static electric field Maxwell's divergence equation states that:

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q23.
Voltage standing wave pattern in a loss less transmission line with characteristic impedance 50 Ω and a resistive load is shown in the figure. The value of load resistance is

a.

50 Ω

b.

200 Ω

c.

12.5 Ω

d.

0 Ω

Discuss
Answer: (b).200 Ω
Q24.
In figure the voltage distribution on a vertical earthed antenna is represented by

a.

curve A

b.

curve B

c.

curve C

d.

curve D

Discuss
Answer: (b).curve B
Q25.
For a good conducting medium the intrinsic impedance is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q26.
Given figure shows a 90° sector of spherical reflector with vertex 'V', centre of curvature 'C' and equal distances VD, DF, FE and EC. When a beam of EM wave is incident parallel to the axis, all the energy will pass through the region

a.

VD

b.

DF

c.

EF

d.

EC

Discuss
Answer: (d).EC
Q27.
Two co-axial cylindrical sheets of charge are present in free space fs = 5 c/m² at r = 2 m and ρs = -2 c/m² at r = 4 m, The displacement flux density D at r = 3 m is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q28.
For space propagation, what will be the electric field strength at receiving antenna

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q29.
In a vertical earthed antenna the base input impedance will be inductive for a height

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q30.
Voltage standing wave pattern in a loss less transmission line with characteristic impedance 50 Ω and a resistive load is shown in the figure. Reflection coefficient is given by

a.

-0.6

b.

-1

c.

0.6

d.

0

Discuss
Answer: (c).0.6
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