SATHEE: Electronic Devices Question 76

Electronic Devices Question 76

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) $n_{e} \leq n_{h}$

D) $n_{e} = n_{h}$

Show Answer

Answer:

Correct Answer: A

Solution:

Phosphorus is a pentavalent impurity so ne > nh.

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Electronic Devices Question 76

Question: If ne and nh are the number of electrons and holes in a semiconductor heavily doped with phosphorus, then

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Answer:

Solution:

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