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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-

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`sigma=n_(1)emu_(e)+n_(1)emu_(h)=n_(1)e(mu_(e)+mu_(h))=3.14xx10^(-6)"mho/cm"`
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ALLEN-WAVES AND OSCILLATIONS-Part-3(Example)
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