If the electrical resistance of a typical substance suddenly drops to zero then the substance is called [NDA]

If the electrical resistance of a typical substance suddenly drops

1.	If the electrical resistance of a typical substance suddenly drops to zero then the substance is called [NDA]
A.	superconductor
B.	semiconductor
C.	in both DC and AC circuits
D.	insulator
Answer» B. semiconductor

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If the electrical resistance of a typical substance suddenly drops to zero then the substance is called [NDA]

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