In an extrinsic semiconductor no of carrier is 5x10`15  per cc. Maximum number of carrier that will take participate into conduction is1 pointnear 10`5none of thesenear 2.25x 10`20/ccnear 5x10`15/cc

The resistivity of a pure semiconductor is 0.5 Ωm. If the electron and hole mobility be 0.39 m2/V-s and 0.21 m2/V-s respectively then calculate the intrinsic carrier concentration.2.08 × 1019/m34.32 × 1019/m31020/m3None of these

Explain the variation of carrier concentration with temperature in an extrinsic semiconductor

In a p-type semiconductor, theA Number of holes are equal to the number of electronsB Electrical resistivity increasesC Electrons are the majority charge carriersD Holes are the majority charge carriersPrevNext

Dopingthe addition of small amounts of impuritiesdrastically affects its propertiessome materials form an excess of electrons andproduce an n-type semiconductorsome materials form an excess of holes andproduce a p-type semiconductorboth n-type and p-type materials have muchgreater conductivity than pure semiconductorsthis is extrinsic conduction

What is meant by extrinsic semiconductors? Also write names of its types.