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 27 of 44

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Q261.
The units for electric dipole moment are
Discuss
Answer: (b).colomb-metre
Q262.
The temperature coefficient of resistivity of semiconductors is
Discuss
Answer: (b).negative
Q263.
Which of the following is used in automatic control of street lights?
Discuss
Answer: (b).Photoconductor
Q264.
Assertion (A): In an intrinsic semiconductor J = (ฮผn x ฮผp)eni.

Reason (R): Intrinsic charge concentration ni at temperature T is given by ni² = Aโ‚€ T³ e^(-EG0/kT).
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q265.
When the atom of rare gas is placed in an electric field the nucleus shifts from the centre of electron cloud by an amount x. If the radius of electron cloud is R, then
Discuss
Answer: (a).x << R
Discuss
Answer: (d).none of the above
Q267.
For a superconductor, the relative permeability is
Discuss
Answer: (a).zero
Q268.
The relative permeability of a ferromagnetic material is
Discuss
Answer: (d).1000 or more
Q269.
Assertion (A): Intrinsic resistivity of silicon is lower than that of germanium.

Reason (R): Magnitude of free electron concentration in germanium is more than that of silicon.
Discuss
Answer: (d).A is false but R is true
Q270.
The units for โˆˆแตฃ are
Discuss
Answer: (d).no units