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

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Q531.
Which of the following will increase the antenna radiation efficiency?
Discuss
Answer: (c).Top loading of antenna
Q532.
A waveguide operated below cut off frequency can be used as
Discuss
Answer: (b).an attenuator
Discuss
Answer: (b).The conduction current density is J and displacement current density ษ—D/ษ—t
Q534.
The radiation pattern of Hertzian dipole in the plane perpendicular to dipole is a
Discuss
Answer: (c).figure of eight
Q535.
The transmitting antennas for lower frequencies (below 500 kHz) are generally
Discuss
Answer: (a).vertical grounded wire type
Q536.
In an home T.V. receiver, the leed in from the antenna is
Discuss
Answer: (d).twin wire
Q537.
A satellite that simply reflect back the signals from one region of the earth to the other region is known as
Discuss
Answer: (d).passive satellite
Q538.
Conductivity is measured in terms of
Discuss
Answer: (a).mho/metre
Q539.
It is desired to reduce the reflection at an air porcelain by use of 7/4 plate (for Porcelain ฮผ = 40, and ฮตr = 7). The thickness of the polystyrene plate required at 10 GHz will be
Discuss
Answer: (c).0.5039 cm
Discuss
Answer: (c).The field strength of 200 mV/m will produced 200 ฮผV of signal in an antenna 2 m long