A particular semiconductor in equilibriu...

A particular semiconductor in equilibrium has `1xx10^(16)cm^(-3)` donor atoms, `1.1xx10^(17)cm^(-3)` acceptor atoms. If the intrinsic carrier density `(n_(i))` of the semiconductor is `10^(12)cm^(-3)`, then the electron density in it will be

`10^(16) cm^(-3)`

`10^(12) cm^(-3)`

`1.1xx10^(17) cm^(-3)`

`10^(7) cm^(-3)`

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