Which of the Following Statements Concerning Semiconductors Is/are CORRECT

question 71

Multiple Choice

Which of the following statements concerning semiconductors is/are CORRECT?
1) The conduction of electricity in p-type semiconductors occurs by the movement of electrons in the conduction band.
2) Doping an intrinsic semiconductor,such as silicon,with a Group 3A element will produce a p-type semiconductor.
3) An n-type semiconductor uses the movement of positive holes in the valence band to conduct electricity.

• A) 1 only
• B) 2 only
• C) 3 only
• D) 1 and 2
• E) 1,2 and 3

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