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 8 of 44

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Q71.
Diamond is a paramagnetic material.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q72.
Which capacitor-store higher amount of energy?

a.

Air capacitor

b.

Paper capacitor

c.

Mica capacitor

d.

Plastic film capacitor

Discuss
Answer: (c).Mica capacitor
Q73.
Above ferroelectric curie temperature, spontaneous polarization in ferroelectric materials becomes stronger.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q74.
In paramagnetic materials

a.

permanent magnetic dipoles exist but the interaction between neighbouring dipoles is negligible

b.

permanent magnetic dipole do not exist

c.

permanent magnetic dipoles exist and the interaction between neighbouring dipoles is very strong

d.

permanent magnetic dipole moment may or may not exist

Discuss
Answer: (a).permanent magnetic dipoles exist but the interaction between neighbouring dipoles is negligible
Q75.
Assertion (A): Atomic number of sodium is 11.
Reason (R): Sodium has a body centred cubic lattice.

a.

Both A and R are true and R is correct explanation of A

b.

Both A and R are true but R is not correct explanation of A

c.

A is true but R is false

d.

A is false but R is true

Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q76.
The number of valence electrons in pentavalent impurity is

a.

5

b.

4

c.

3

d.

1

Discuss
Answer: (a).5
Q77.
If the diameter of a wire is doubled, its current carrying capacity becomes

a.

one-fourth

b.

half

c.

twice

d.

four times

Discuss
Answer: (d).four times
Q78.
The law J = ฯƒE, where J is current density, ฯƒ is electrical conductivity and E is field strength is

a.

Ohm's law

b.

Gauss law

c.

Ampere's law

d.

Biot-Savart law

Discuss
Answer: (a).Ohm's law
Q79.
Assertion (A): Silicon is less sensitive to changes in temperature than germanium.
Reason (R): Cut in voltage in silicon is less than that in germanium.

a.

Both A and R are true and R is correct explanation of A

b.

Both A and R are true but R is not correct explanation of A

c.

A is true but R is false

d.

A is false but R is true

Discuss
Answer: (c).A is true but R is false
Q80.
Material which lack permanent magnetic dipoles are known as

a.

paramagnetic

b.

diamagnetic

c.

ferromagnetic

d.

ferrimagnetic

Discuss
Answer: (b).diamagnetic
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