Question

Assertion (A): The conductivity of an n type semiconductor increases with increase in temperature and increase in density of donor atoms.

Reason (R): Diffusion of carriers occurs in semiconductors.

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 a correct explanation of A

c.

A is true but R is false

d.

A is false but R is true

Posted under Electronics and Communication Engineering

Answer: (b).Both A and R are true but R is not a correct explanation of A

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. Assertion (A): The conductivity of an n type semiconductor increases with increase in temperature and increase in density of donor atoms. Reason (R): Diffusion of carriers...
Add Comment

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. Consider the following statements about diamagnetic material and diamagnetism.

1. The materials have negative magnetic susceptibility.
2. At very low temperature diamagnetic materials.

Which of the statements given above is/are correct?

View solution

Q. In a photo emissive device and emission efficiency is increased by

View solution

Q. Materials in order of decreasing electrical conductivity are

View solution

Q. Transconductance characteristics of JFET depict the relation between

View solution

Q. The resistivity of intrinsic semiconductor material is about

View solution

Q. Which of the following exhibits negative resistance in a portion of its characteristics?

View solution

Q. The emission of light is LED due to

View solution

Q. The sum of two or more arbitrary sinusoidal is

View solution

Q. Which of the following is used as a passive component in electronic circuits?

View solution

Q. When a ferromagnetic substance is magnetised, there are small changes in its dimensions. This phenomenon is called

View solution

Q. Gold is often diffused into silicon PN junction devices to

View solution

Q. Assertion (A): FET is a unipolar device.

Reason (R): BJT is bipolar device.

View solution

Q. Ferrites are

View solution

Q. High purity copper is obtained by

View solution

Q. Photo electric emission can occur only if the frequency of light is more than threshold frequency.

View solution

Q. In a JFET the width of channel is controlled by

View solution

Q. The unit of thermal resistance of a semi-conductor device is

View solution

Q. No load d.c. output will be least in case of

View solution

Q. When an electron breaks a covalent bond and moves away,

View solution

Q. A photo diode is

View solution
View All MCQs on Electronics and Communication Engineering

Recommended Subjects

Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!

Biochemistry

Delve into the intricate world of Biochemistry with our Biochemistry category....

Environment Management

Master the art of Environment Management with our specialized category. Explore...

IC90 Human Resource Management

Prepare for success in the Insurance Institute of India (III) examination with IC90...

Cost Accounting

Dive into the realm of Cost Accounting with our specialized category. Explore cost...

Data Interpretation

Master the art of data analysis and interpretation with our Data Interpretation...

Total Quality Management

Enhance your understanding of quality management with our Total Quality Management...

Human Anatomy and Physiology

Embark on a journey through the human body with our Human Anatomy and Physiology...

Electrical Measurement and Instrumentation

Unlock the world of electrical measurements with our dedicated category. Explore...

IC22 Life Insurance Underwriting

Prepare for success in the Insurance Institute of India (III) examination with IC22...