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InterviewSolution
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Assertion : Conductivity of silicon increases by doping it with group-15 elements. Reason : Doping means introduction of small amount of impurities like P, As or Bi into the pure crystal.A. P is non-metal whereas Al is a metalB. P is a poor conductor while Al is a conductorC. P gives rise to extra electrons while Al gives rise to holesD. P gives rise to holes while Al gives rise to extra electrons |
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Answer» Correct Answer - C Doping of Si with P gives extra electrons while doping with Al gives rise to holes. |
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