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 12 of 63

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Q111.
For a 400 kHz transmission line having L = 0.5 mH/km, C = 0.08 mF and negligible R and G, the velocity propagation will be
Discuss
Answer: (a).15.8303 km/s
Q112.
Antenna efficiency of antenna is, if radiation resistance is 370 ฮฉ and loss resistance is 100 ฮฉ
Discuss
Answer: (c).78%
Q113.
At a particular time it is observed that the frequencies of F layer at Delhi is 3 MHz the maximum electron density is
Discuss
Answer: (a).11 x 10¹แดผ
Q114.
The effective length of an ฮป/2 antenna (Given Rr = 73 ฮฉ and (Ae)max = 0.13 ฮป² and ฮท = 120 ฯ€ is __________ .
Discuss
Answer: (b).0.317 ฮป
Q115.
A vertical wire of 1 meter length carries a current of 1 A at 10 MHz. The total radiated power is nearly
Discuss
Answer: (d).73 W
Q116.
The length of half-wave antenna is at 30 MHz
Discuss
Answer: (b).5 meter
Q117.
For a 400 kHz transmission line having L = 0.5 mH/km, C = 0.08 mF and negligible R and G, the characteristic impedance will be
Discuss
Answer: (d).79 ฮฉ
Q118.
Beamwidth (between first nulls) will be for an antenna at 3 MHz with directivity of 100
Discuss
Answer: (a).140°
Q119.
A broadside array consisting of 200 cm wavelength with 10 half-wave dipole spacing 10 cm. And if each array element feeding with 1 amp. current and operating at same frequency then find the radiated power
Discuss
Answer: (a).730 W
Q120.
If wave of critical frequency 30 MHz is departing at an angle of 60°, then the MUF is given to be
Discuss
Answer: (d).60 MHz