What is an intrinsic semiconductor?

Important Questions on Electronic Devices

HARD

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 21 - Electronic Devices>EXERCISE 21>Q 2

Distinguish between energy levels and energy bands.

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 21 - Electronic Devices>EXERCISE 21>Q 3

What is doping?

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 21 - Electronic Devices>EXERCISE 21>Q 4

 What are the effects of doping ? 

HARD

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 21 - Electronic Devices>EXERCISE 21>Q 5

What are the differences between an intrinsic and extrinsic semiconductor ?

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 21 - Electronic Devices>EXERCISE 21>Q 6

Distinguish between p-type and n-type semiconductors.
 

MEDIUM

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 21 - Electronic Devices>EXERCISE 21>Q 7

What is the effect of rise of temperature on the resistivity of a metal ?

MEDIUM

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 21 - Electronic Devices>EXERCISE 21>Q 8

How does the resistivity of a semiconductor change with temperature ?

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 21 - Electronic Devices>EXERCISE 21>Q 9

Are the $n$ -type and $p$ -type materials electrically neutral? Explain.