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.

Which statement is true about Semiconductors?Question 13AnswerA.They have a higher resistance than insulatorsB.They are always used as insulators in electronic devicesC.Their electrical conductivity between that of conductors and insulatorsD.They only have one energy band

Which of the following is not a property of semiconductors used in electronic devices?a) They excite electronsb) They don’t emit lightc) They have high thermal conductivityd) They have variable electrical conductivity

Which one of the following statement is false ?The resistance of intrinsic semiconductor decreases with increase of temperature.Pure Si doped with trivalent impurities gives a p-type semiconductor.Majority carriers in a n-type semiconductor are holesMinority carriers in a p-type semiconductor are electrons.

The effect of increase in temperature on the number of electrons in conduction band (ne) and resistance of a semiconductor will be as:Both ne and resistance decreaseBoth ne and resistance increasene increases, resistance decreasesne decreases, resistance increases

What effect do added impurities have on semiconductor conductivity?