Arsenic is used to dope germanium to obt...

Arsenic is used to dope germanium to obtain

intrinsic semiconductor

p-type semiconductors

n-type semiconductors

non-conducting germanium

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The product of the hole concentration and the conduction electron concentration turns out to be independent of the amount of any impurity doped. The concentration of conduction electrons in germanium is 6xx10^19 per cubic per cubic metre.When some phosphorus impurity is doped into a germanium sample, the concentration of conduction electrons increases to 2xx10^28 per cubic metre.Find the concentration of the holes in the doped germanium.

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RESONANCE-SOLID STATE-Part-II National standard examination in chemistry

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