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Suppose a pure Si crystal has 5 × 10^(28...

Suppose a pure Si crystal has `5 × 10^(28)` atoms `m^(–3)`. It is doped by 1 ppm concentration of pentavalent As. Calculate the number of electrons and holes. Given that `n_(i) =1.5 × 10^(16) m^(–3)`.

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