In a semiconducting material the mobilit...

In a semiconducting material the mobilities of electrons and holes are `mu_(e )` and `mu_(h)` respectively. Which of the following is true?

A

`mu_(e ) gt mu_(h)`

B

`mu_(e ) lt mu_(h)`

C

`mu_( e)=mu_(h)`

D

`mu_( e)lt 0, mu_(h) gt 0`

Text Solution

Verified by Experts

The correct Answer is:

A

`mu_(e ) gt mu_(h)`
In semiconductor as electrons are free and as well as its mass is less so electrons is mobile where as holes are in covalent bond so do not move, therefore `mu_( e) gt mu_(h)`.

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