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Suppose a pure Si-crystal has 5xx10^(28)...

Suppose a pure Si-crystal has `5xx10^(28) "atoms" m^(-3)`. It is doped by 1 ppm concentration of pentavalent As. Calculate the number of electrons and holes. Give that `n_(i)=1.5xx10^(16)m^(-3)`.

A

`4.5x10^9 m^-3`

B

`10^16 m^-3`

C

`2.25x10^32 m^-3`

D

`5x10^22 m^-3`

Text Solution

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The correct Answer is:
A
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