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 54 of 63

Q531.
UHF and microwaves in the frequency range 300 MHz to 30 GHz can be best transmitted using __________ propagation
Discuss
Answer: (c).duct
Q532.
The directive gain of λ/2 resonant wire is 1.64.
Discuss
Answer: (a).True
Q533.
The effective height of a vertical radiator can be increased by
Discuss
Answer: (c).capacitive loading
Q534.
When an electromagnetic wave travelling in one medium strikes upon a second medium (having a different conductivity) the wave will be
Discuss
Answer: (d).partially transmitted and partially reflected
Q535.
The line of sight communication requires that transmit and receive antennas to face each other. If the transmit antenna is vertically polarized, for the best reception the receive antenna should be
Discuss
Answer: (a).horizontally polarized
Q536.
An antenna has 40 Ω resistance and 60 Ω radiation resistance. The efficiency of the antenna is
Discuss
Answer: (d).60%
Q537.
The duration of sunspot cycle is
Discuss
Answer: (b).11 years
Q538.
Electromagnetic cavity resonators (energy storage devices) are used in
Discuss
Answer: (d).all of the above
Q539.
Waveguides are generally used above
Discuss
Answer: (d).1000 MHz
Q540.
Which type of fading causes serious distortion of modulated signal?
Discuss
Answer: (a).Selective fading