Question

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

Answer

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