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 9 of 63

Q81.
In a conductor which of the following relations hold good?
Discuss
Answer: (c).∇ x D = 0
Q82.
The radiation resistance of a λ/16 wire dipole in free space will be nearly
Discuss
Answer: (b).3 Ω
Q83.
The phase angle corresponding to λ/4 in a standing-wave pattern is
Discuss
Answer: (b).90°
Q84.
A hollow rectangular waveguide has dimensions a = 2b. Calculate the amount of attenuation, if the frequency is 3 GHz, and b = 1 cm.
Discuss
Answer: (b).47.33
Q85.
Calculate the directivity of an antenna for θE = 30°, θH = 60
Discuss
Answer: (b).23
Q86.
Which one of the following potential does not satisfy Laplace's equations?
Discuss
Answer: (b).v = π cos φ
Q87.
A rectangular waveguide measures 3 x 4.5 cm internally and has a 10 GHz signal propagated in it. Calculate the wave impedance for dominant mode.
Discuss
Answer: (b).1.3 π
Q88.
Calculate wave impedance for TE mode
Discuss
Answer: (d).629 Ω
Q89.
In a 100 turn coil, if the flux through each turn is (t³ - 2t)mWb, the magnitude of the induced emf in the coil at a time of 4 sec is
Discuss
Answer: (c).4.6 V
Q90.
A (75 - j 40) W load is connected to a co-axial line of z0 = 75ω at 6 MHz. The load matching on the line can be accomplished by connecting
Discuss
Answer: (b).an inductance at the load