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A semiconductor has phosphorus as impuri...

A semiconductor has phosphorus as impurity, then it will have

A

`n_e=n_h`

B

`n_e gt gt n_h`

C

`n_e lt lt n_h`

D

`n_e=1/2 n_h`

Text Solution

Verified by Experts

The correct Answer is:
B
When phosphorus (pentavalent impurity) is added to the semiconductor, it becomes an n-type semiconductor, where electrons are the majority charge carriers. Hence `n_e gt gt n_h`
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