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 13 of 44

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Discuss
Answer: (d).the number of free electrons and holes increases
Q122.
Assertion (A): In many materials, dielectric polarization causes mechanical distortion.
Reason (R): If dielectric polarization causes mechanical distortion then mechanical distortion must cause dielectric polarization.
Discuss
Answer: (c).A is true but R is false
Q123.
Semi conducting materials are all
Discuss
Answer: (c).elements or compounds
Q124.
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
Q126.
Orbital magnetic dipole moment is due to the motion of electron in its orbit around nucleus.
Discuss
Answer: (a).True
Q127.
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
Q128.
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
Q129.
When a pentavalent impurity is added, the semiconductor becomes
Discuss
Answer: (b).n type
Q130.
In body centred cubic structure, comers and centre of the cube are occupied by identical atoms.
Discuss
Answer: (a).True