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 15 of 44

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Q141.
Silicon and germanium atoms combine orderly into array of atoms located in repetitive geometric pattern. This pattern is called
Discuss
Answer: (a).crystal
Discuss
Answer: (a).the number of holes and free electrons is always equal
Q143.
Automobile ignition systems use the principle of
Discuss
Answer: (c).mutual inductance
Q144.
If ฯ‰โ‚€ is the angular frequency of rotation of electron in the absence of magnetic field, the angular frequency ฯ‰, when a magnetic field B is acting is ฯ‰ โ‰… ฯ‰โ‚€ + (e/2m)B.
Discuss
Answer: (a).True
Q145.
The resistance of a superconductor is
Discuss
Answer: (d).zero
Q146.
Dielectric constant, under the condition of alternating fields, is a complex quantity.
Discuss
Answer: (a).True
Q147.
In an homogeneous dielectric subjected to an electric field E, the dipole moment per unit volume is โˆˆโ‚€(โˆˆแตฃ - 1) E.
Discuss
Answer: (a).True
Q148.
Orbital magnetic dipole moment is due to the motion of electron in its orbit around nucleus.
Discuss
Answer: (a).True
Q149.
Assertion (A): โˆˆแตฃ can be determined experimentally by measuring the capacitance of a parallel plate capacitor with and without the dielectric.
Reason (R): Capacitance of a parallel plate capacitor = ฦโ‚€ฦแตฃA/d .
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Q150.
Assertion (A): An electron having charge - e and mass m and lying in an electric field E is subjected to an acceleration - (e/m) E.

Reason (R): If there are n electrons/m³ moving with velocity vแตช and each electron has a charge - e, the current density J = - n evแตช.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A