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What will be conductivity of pure sillic...

What will be conductivity of pure sillicon crystal at 300 K temp? if electron hole pairs per `cm^(3)` is `1.072xx10^(10)` at this temp. `mu_(n)=1350 cm^(2)//"volt"` sec and `mu_(p)=480 cm^(2)//"volt"` sec-

A

`3.14 xx 10^(-6) mho//cm`

B

`3 xx 10^(6) mho//cm`

C

`10^(-6) mho//cm`

D

`10^(6) mho//cm`

Text Solution

Verified by Experts

The correct Answer is:
A
`sigma=en_(e)(mu_(e)+mu_(h))`
`=1.6xx10^(-19)xx1.072xx10^(10)(1350+480)`
`=3.14 xx10^(-6) "mho/cm"`
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