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 23 of 44

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Q221.
A single layer air cored coil has n turns and inductance L. If a new coil is formed by having 2n turns while keeping the coil length and diameter the same, the new inductance is
Discuss
Answer: (d).4 L
Q222.
The colour code on a carbon resistor is yellow-violet-orange. The value of resistance is
Discuss
Answer: (d).47000 ฮฉ
Q223.
A leaky dielectric has โˆˆแตฃ = โˆˆแตฃ' - jโˆˆแตฃ". If a field E is applied, the current component in phase with E is proportional to โˆˆแตฃ".
Discuss
Answer: (a).True
Q224.
Assertion (A): In ionic dielectrics, P = Pe + Pi.

Reason (R): In ionic crystals, permanent electric dipole moment is zero.
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Q225.
The current flow in a semiconductor is due to
Discuss
Answer: (c).holes and electrons
Q226.
Assertion (A): Relative permittivity is determined by the atomic structure of the material.

Reason (R): Absolute permittivity is determined by the atomic structure of the material.
Discuss
Answer: (c).A is true but R is false
Discuss
Answer: (c).proportional to (frequency)²
Discuss
Answer: (a).below liquid helium temperature
Q229.
Assertion (A): Doping level in extrinsic semiconductors is very small.

Reason (R): Additional of impurity in the ratio of 1 part in 108 parts increases the number of charge carriers by about 20.
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Discuss
Answer: (c).nucleus and inner orbits