What is a semiconductor?A.A conductor that conducts electricity faster than common metals.B.A conductor that has less conductivity than do metallic conductors.C.A substance that completely blocks the flow of electricity.D.A conductor that operates only at low temperatures.SUBMITarrow_backPREVIOUS

What is a semiconductor?Material in which electric charges do not flowMaterial that can act as a conductor or an insulatorMaterial that is partially magnetizedPart of a radio that receives radio waves

Differentiate between conductor and semiconductor in terms of energy band theory.

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

At room temperature, electrical conductivity of semiconductor isgreater than that of a good conductor.zero.less than that of a good conductor.less than that of a bad conductor.

Choose the incorrect statement from the following:Semiconductors exhibit electrical properties between conductors and insulators.Electrical resistivity decreases with addition of impurities in semiconductors. Electrical conductivity decreases in semiconductors with increasing temperature. Examples of semiconductors include Germanium and Silicon.