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 22 of 44

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Q211.
At T = 0, the resistivity of a perfect single crystal of a metal is
Discuss
Answer: (a).0
Q212.
In a polyatomic gas, the types of polarization which exist together are
Discuss
Answer: (d).electronic, orientational and ionic
Q213.
Assertion (A): Metals are better heat conductors than insulators.

Reason (R): If dT/dx is temperature gradient, Q is heat flow density and K is thermal conductivity, then Q = - K (dT/dx).
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q214.
In a virgin specimen of iron, the direction of spontaneous magnetisation varies from domain to domain.
Discuss
Answer: (a).True
Q215.
Which of the following is used in lightning arresters?
Discuss
Answer: (d).Varistor
Q216.
High frequency inductors and capacitors are commonly plated with silver. The main purpose of this is to
Discuss
Answer: (b).reduce ac resistance
Q217.
In its lowest state, the electron is bound to the field of proton by an energy equal to
Discuss
Answer: (c).13.6 eV
Discuss
Answer: (c).equal to applied field plus a contribution from neighbouring dipoles
Q219.
Consider the following statement: In case of a superconductor

1. B = 0
2. ฮผแตฃ is high
3. diamagnetism is high
4. transition temperature varies with isotopic mass.

Of the above statements
Discuss
Answer: (c).1, 3, 4 are correct
Q220.
Assertion (A): In liquids and glassy substances, dielectric losses occur.

Reason (R): The orientation polarization in many substances is frequency dependent.
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A