Write two differences between intrinsic semiconductor and extrinsic semiconductor.

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Solution

Instrinsic semiconductor Extrinsic semiconductor
These are pure semiconductors These are doped semiconductors
Charge carriers are equal in numbers when biased Charge carriers are unequal in numbers when biased
Electrical conductivity is less Electrical conductivity is more.

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Instrinsic semiconductor	Extrinsic semiconductor
These are pure semiconductors	These are doped semiconductors
Charge carriers are equal in numbers when biased	Charge carriers are unequal in numbers when biased
Electrical conductivity is less	Electrical conductivity is more.