The true statement(s) for a semiconductor is (are) (A) conductivity is less than conductors and ...

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The true statement(s) for a semiconductor is (are)
(A) conductivity is less than conductors and more than non-conductors
(B) Its temperature coefficient of resistance is negative
(C) It works at absolute zero temperature as an ideal non-conductor
(D) In pure state, silicon, germanium are called intrinsic semiconductors.
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