railway RRB JE (CBT I + CBT II) Mock Test 2024 Electronic Devices Semiconductors

Which of the following statements correctly describes the energy band diagram for conductors, semiconductors, and insulators?

1
Conductors have a wide forbidden gap, semiconductors have a narrow-forbidden gap, and insulators have no forbidden gap.
2
Conductors have no forbidden gap, semiconductors have a narrow-forbidden gap, and insulators have a wide forbidden gap.
3
Conductors have a narrow-forbidden gap, semiconductors have no forbidden gap, and insulators have a wide forbidden gap.
4
Conductors have a wide forbidden gap, semiconductors have no forbidden gap, and insulators have a narrow-forbidden gap.
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