In a pure silicon (n(i)=10^(16)//m^(3)) ...

In a pure silicon `(n_(i)=10^(16)//m^(3))` crystal at `300K, 10^(21)` atoms of phosphorus are added per cubic meter. The new hole concentration will be

`10^(21)per m^(3)`

`10^(19)per m^(3)`

`10^(11)per m^(3)`

`10^(5)per m^(3)`

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