[" Silicon is a semiconductor.If a small...

[" Silicon is a semiconductor.If a small amount of As "],[" is added to it,then its electrical conductivity "],[" (1) Decreases "],[" (2) Increases "],[" (3) Remains unchanged "],[" (4) Becomes zero "]

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[" Silicon is a semiconductor.If a small amount of As "],[" is added to it,then its electrical conductivity "],[" (1) Decreases "],[" (2) Increases "],[" (3) Remains unchanged "],[" (4) Becomes zero "]

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