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Semiconductor Electronics Materials Devices And Simple Circuits

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semiconductor-electronics--materials-devices-and-simple-circuits Question 8

Question: Q. 1. Write two points of difference between intrinsic and extrinsic semiconductors.

[Foreign 2017]

Distinguish between ‘intrinsic’ and ’extrinsic’ semiconductors.

[Delhi I, II, III 2015]

Show Answer

Solution:

Ans. Any two differences

$1+1$

Intrinsic	Extrinsic
(i) Pure semiconductor.	(i) Doped or impure.
(ii) $n_{e}=n_{h}$.	(ii) $n_{e} \neq n_{h}$.
(iii) Low conductivity at room temperature.	(iii) Higher conduc- tivity at room tem- perature.
(iv) Conductivity de- pends on temperature.	(iv) does not depend ity dignificantly on tem- perature.

[CBSE Marking Scheme 2017]

Semiconductor Electronics Materials Devices And Simple Circuits

semiconductor-electronics--materials-devices-and-simple-circuits Question 8

Table of Contents

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Semiconductor Electronics Materials Devices And Simple Circuits

semiconductor-electronics--materials-devices-and-simple-circuits Question 8

Table of Contents

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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