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 24 of 44

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Q231.
Assertion (A): Copper is a good conductor of electricity.

Reason (R): Copper has a face centred cubic lattice.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q232.
When a dielectric is subjected to an electric field E, each volume element of dielectric can be considered to be carrying an electric dipole moment.
Discuss
Answer: (a).True
Q233.
A dielectric of relative permittivity โˆˆแตฃ is subjected to a homogeneous electric field E. The dipole moment P per unit volume is given by
Discuss
Answer: (c).P = โˆˆโ‚€(โˆˆแตฃ - 1) E
Q234.
Which of these has the highest dielectric strength?
Discuss
Answer: (a).Mica
Q235.
For an insulating material, dielectric strength and dielectric losses should be
Discuss
Answer: (c).high and low
Q236.
Consider the following statements

1. An iron cored choke is non linear and passive device.
2. A carbon resistor kept in sunlight is a time invariant and passive device.
3. A dry cell is a time varying and active device.
4. An air capacitor is time invariant and passive device.

Of these statements
Discuss
Answer: (a).1, 2, 3 and 4 are correct
Q237.
The direction of force an a conductor carrying current and lying in a magnetic field can be found by using
Discuss
Answer: (a).Fleming's left hand rule
Q238.
Assertion (A): Rochelle salt and Barium titanate are both ferroelectric.

Reason (R): Ferroelectric materials exhibit hysteresis effect.
Discuss
Answer: (b).Both A and R are true but R is not correct explanation of A
Q239.
The units for electric dipole moment are
Discuss
Answer: (b).colomb-metre
Q240.
The temperature coefficient of resistivity of semiconductors is
Discuss
Answer: (b).negative