Semiconducting Devices Question 147

Question: If NP and Ne be the numbers of holes and conduction electrons in an extrinsic semiconductor, then

[MP PMT 1999; AMU 2001]

Options:

A) NP>Ne

B) NP=Ne

C) NP<Ne

D) NP>Ne or NP<Ne depending on the nature of impurity

Show Answer

Answer:

Correct Answer: D

Solution:

Extrinsic S.C. 

PType(np»ne)  NType(ne»np)  



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