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 38 of 44

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Q371.
With increase in temperature, the electrical conductivity would

a.

increase in metals as well as in intrinsic semiconductor

b.

increase in metals but decrease in intrinsic semiconductor

c.

decrease in metals but increase in intrinsic semiconductor

d.

decrease in metals as well as in intrinsic semiconductor

Discuss
Answer: (c).decrease in metals but increase in intrinsic semiconductor
Q372.
An electron for which l = 0 has zero orbital magnetic dipole moment.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q373.
The resistance of a metallic wire would

a.

increase as f increase

b.

decrease as f increase

c.

remains the same at all frequencies

d.

increase with f up to a certain frequency and then decrease

Discuss
Answer: (a).increase as f increase
Q374.
If a small amount of Cu is added to Ni conductor, then

a.

resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni

b.

residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres

c.

resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects

d.

resistivity of Ni remains the same

Discuss
Answer: (c).resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects
Q375.
When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q376.
If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q377.
The number of protons in a copper atom are

a.

2

b.

9

c.

11

d.

29

Discuss
Answer: (d).29
Q378.
When a material is in superconducting state and a magnetic field is applied

a.

the superconducting property is not affected

b.

the superconducting property may be affected and resistivity may increase from zero to a low value

c.

the superconducting property may be destroyed

d.

the material may become an insulator

Discuss
Answer: (c).the superconducting property may be destroyed
Q379.
For a diamagnetic material, ฮผแตฃ = 1.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q380.
We can know the arrangement of atom in a material by studying electron diffraction pattern.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
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