Materials and Components MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Materials and Components, 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 Materials and Components 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 Materials and Components mcq questions that explore various aspects of Materials and Components problems. Each MCQ is crafted to challenge your understanding of Materials and Components 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 Materials and Components 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 Materials and Components. 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 Materials and Components knowledge to the test? Let's get started with our carefully curated MCQs!

Materials and Components MCQs | Page 9 of 44

Q81.
A 200 turn coil has a self inductance of 10 mH. If the number of turns is doubled, all other quantities remaining the same, the self inductance will be
Discuss
Answer: (d).40 mH
Q82.
A material which is lightly repelled by a magnetic field is known as
Discuss
Answer: (a).diamagnetic material
Q83.
Which of the following is the poorest conductor of electricity?
Discuss
Answer: (b).Nichrome
Q84.
The magnetic moment in units of Bohr magneton of a ferrous ion in any ferrite is
Discuss
Answer: (c).4
Q85.
Assertion (A): The optical dielectric constant (i.e., εr at optical frequencies)of ionic dielectrics is less than static dielectric constant.

Reason (R): At optical frequencies, Pi = 0.
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Discuss
Answer: (b).the magnetic lines of force will bend to pass through the piece
Q87.
Assertion (A): Magnetism can be explained by the theory of magnetic domains.

Reason (R): The existence of magnetic domains is evident from the Bitter powder patterns.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Discuss
Answer: (d).all of the above
Q89.
In a specimen of ferromagnetic material, as the flux density is increased from zero to 2.5 T, µᵣ will
Discuss
Answer: (d).first increase then decrease
Q90.
In molecules of ionic crystals, orientation polarization is zero.
Discuss
Answer: (a).True