(A) Conductors (X)
(B) Insulators (X)
(C) Semi conductors ()
(D) All of the above (X)
Answers: Holes can exist in Semi conductors .
(A) Conductors (X)
(B) Insulators (X)
(C) Semi conductors ()
(D) All of the above (X)
Answers: Holes can exist in Semi conductors .
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