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Question: Answered & Verified by Expert
Intrinsic semiconductor is electrically neutral, extrinsic semiconductor having large number of current carriers would be:
PhysicsSemiconductorsVITEEEVITEEE 2023
Options:
  • A electricallyneutral
  • B positively charged or negatively charged depending upon the type of impurity that has been added
  • C positively charged
  • D negatively charged
Solution:
1601 Upvotes Verified Answer
The correct answer is: positively charged or negatively charged depending upon the type of impurity that has been added
Extrinsic semiconductor is due to the type of impurity atom's valency. If impurity atoms are trivalent, then carriers are hole. And if impurity atoms are pentavalent then carriers are electron.

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