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 4 of 44

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Q31.
Assertion (A): Both sodium and ferrous are ferromagnetic.

Reason (R): Both sodium and ferrous have body centred cubic structure.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q32.
For iron, the ferromagnetic Curie temperature is
Discuss
Answer: (d).about 1000 K
Q33.
The probability of recombination of electrons and holes in a semiconductor is proportional to
Discuss
Answer: (c).density of electrons and holes
Q34.
Assertion (A): The regular or irregular stacking of atoms has importanteffect on properties of materials.

Reason (R): The arrangement of atoms in a given material can be studied using X-rays.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q35.
If temperature is increased, the temperature coefficient of a metal
Discuss
Answer: (b).decreases
Discuss
Answer: (b).decreases transition temperature
Q37.
If v is velocity of electron, ฮต0 is absolute permittivity, m is mass of electron, e is charge on electron and r is the radius of orbit of electron in hydrogen atom, the stability of orbit requires the following equation to be satisfied

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q38.
A parallel plate capacitor has area of plate equal to 1 m and distance between plates is also 1 m². The lossy dielectric has a complex dielectric constant โˆˆr = โˆˆ'r - j โˆˆ"r. If the capacitor is represented by R and C is parallel, then

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q39.
The v-i characteristic shown in the given figure is for
Discuss
Answer: (c).varistor
Q40.
Two coaxial metallic cylinders have radii R1 and R2. The space between them is filled with a dielectric having dielectric constant โˆˆr. The capacitance per metre length is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B