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 24 of 44

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Q231.
The current flow in a semiconductor is due to
Discuss
Answer: (c).holes and electrons
Q232.
Assertion (A): Relative permittivity is determined by the atomic structure of the material.

Reason (R): Absolute permittivity is determined by the atomic structure of the material.
Discuss
Answer: (c).A is true but R is false
Discuss
Answer: (c).proportional to (frequency)²
Discuss
Answer: (a).below liquid helium temperature
Q235.
Assertion (A): Doping level in extrinsic semiconductors is very small.

Reason (R): Additional of impurity in the ratio of 1 part in 108 parts increases the number of charge carriers by about 20.
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Discuss
Answer: (c).nucleus and inner orbits
Q237.
Assertion (A): Copper is a good conductor of electricity.

Reason (R): Copper has a face centred cubic lattice.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q238.
When a dielectric is subjected to an electric field E, each volume element of dielectric can be considered to be carrying an electric dipole moment.
Discuss
Answer: (a).True
Q239.
A dielectric of relative permittivity โˆˆแตฃ is subjected to a homogeneous electric field E. The dipole moment P per unit volume is given by
Discuss
Answer: (c).P = โˆˆโ‚€(โˆˆแตฃ - 1) E
Q240.
Which of these has the highest dielectric strength?
Discuss
Answer: (a).Mica