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 14 of 63

Q131.
A rectangular waveguide measures 3 x 4.5 cm internally and has a 10 GHz signal propagated in it. Calculate the guide wavelength for dominant mode.
Discuss
Answer: (d).3/88 m
Q132.
A rectangular waveguide measures 3 x 4.5 cm internally and has a 10 GHz signal propagated in it. Calculate the cut off frequency for dominant mode.
Discuss
Answer: (c).5 GHz
Q133.
An isolated sphere in air has a radius equal to 1/4πε₀ meter, its capacitance is
Discuss
Answer: (b).1F
Q134.
Find cut off wavelength for mode TE11 in a circular waveguide having radius 2 cm. Assume K'a = 1.841
Discuss
Answer: (b).6.82 cm
Q135.
The refractive index of E layer, if angle of incidence is 30°
Discuss
Answer: (a).0.5
Q136.
A transmission line having 50 Ω impedance is terminated in a load of (40 + j 30) Ω. The VSWR is
Discuss
Answer: (d).2
Q137.
Calculate the wave number in waveguide having dimensions 4 x 2 cm at 3 GHz
Discuss
Answer: (b).62.8
Q138.
The I/P impedance of a short circuited quarter wave long transmission line is
Discuss
Answer: (d).none of the above
Q139.
A dipole antenna of λ/8 length has an equivalent total loss resistance of 1.5 Ω. The efficiency of the antenna is
Discuss
Answer: (c).89.159%
Q140.
Gain of an antenna with a circular aperture of diameter 4 meter at frequency of 10 GHz, with directivity 60
Discuss
Answer: (a).60