In extrinsic P and N-type semiconductor mater | vedclass

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(D) In extrinsic semiconductors,the doping concentration is typically very low compared to the number of host semiconductor atoms.Typically,for every

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$10^{-7}$

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(D) In extrinsic semiconductors,the doping concentration is typically very low compared to the number of host semiconductor atoms.Typically,for every $10^{6}$ to $10^{8}$ host atoms,one impurity atom is added.Therefore,the ratio of impurity atoms to pure semiconductor atoms is approximately $10^{-6}$ to $10^{-8}$.Among the given options,$10^{-7}$ is the most appropriate value representing this ratio.

In extrinsic $P$ and $N$-type semiconductor materials,the ratio of the impurity atoms to the pure semiconductor atoms is about

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