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 23 of 44

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Q221.
In which of the following semiconductor are holes majority carriers
Discuss
Answer: (c).p type
Q222.
The equation D = โˆˆโ‚€โˆˆแตฃ E refers only to isotropic materials.
Discuss
Answer: (a).True
Q223.
When a ferromagnetic substance is magnetised there are small changes in dimensions. This phenomenon is called
Discuss
Answer: (b).magnetostriction
Q224.
Assertion (A): In some materials, ฦแตฃ is independent of temperature while in others, ฦแตฃ depends on temperature.

Reason (R): If permanent dipoles are absent, ฦแตฃ varies with temperature.
Discuss
Answer: (c).A is true but R is false
Q225.
An electron in a homogeneous magnetic field and having velocity perpendicular to the direction of field moves
Discuss
Answer: (d).in a circular path
Q226.
Spontaneous polarization occurs in ferroelectric materials.
Discuss
Answer: (a).True
Q227.
Lines of magnetic field cannot intersect.
Discuss
Answer: (a).True
Q228.
At T = 0, the resistivity of a perfect single crystal of a metal is
Discuss
Answer: (a).0
Q229.
In a polyatomic gas, the types of polarization which exist together are
Discuss
Answer: (d).electronic, orientational and ionic
Q230.
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