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 5 of 44

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Q41.
Resistivity of copper is lower than that of nickel. When a small percentage of copper is added to nickel, the resistivity
Discuss
Answer: (a).increases
Q42.
Lines of magnetic field attract each other.
Discuss
Answer: (b).False
Discuss
Answer: (b).are shared between neighbouring atoms
Discuss
Answer: (b).refined mineral oil
Q45.
Assertion (A): Drift velocity of electrons is proportional to the applied electric field E.

Reason (R): The average drift velocity per unit field is called mobility.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q46.
Assertion (A): Ferroelectric materials have spontaneous polarization.
Reason (R): Above curie temperature, โˆˆ = C/(T-ฯด) for ferro-electric materials.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q47.
If e is the charge of an electron, R is the radius of its orbit and ฯ‰ is the angular velocity of electron, the magnetic dipole moment ฮผm of the orbit is |ฮผm| = eฯ‰R².
Discuss
Answer: (b).False
Discuss
Answer: (a).the magnetic field will not be affected
Q49.
The number of valence electrons in donor impurity are

a.

5

b.

4

c.

3

d.

1

Discuss
Answer: (a).5
Q50.
In a true valence crystal, the bonding between the atoms is accomplished by the sharing of valence electrons.
Discuss
Answer: (a).True