Semiconducting Devices Question 167

Question: If $ n _{e} $ and $ n _{h} $ are the number of electrons and holes in a semiconductor heavily doped with phosphorus, then

[MP PMT 2000]

Options:

A) $ n _{e}»n _{h} $

B) $ n _{e}«n _{h} $

C) $ n _{e}\le n _{h} $

D) $ n _{e}=n _{h} $

Show Answer

Answer:

Correct Answer: A

Solution:

Phosphorus is a pentavalent impurity so ne > nh.



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