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In a crystal, the permitted energy state...

In a crystal, the permitted energy states of electrons are present

A

in the conduction band and the forbidden gap

B

only in the forbidden gap

C

in the valence band and conduction band

D

in the forbidden gap and the valence band

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The correct Answer is:
C
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NIKITA PUBLICATION-SEMICONDUCTORS-MCQS
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  2. Generally, the number of electrons in the valence shell of good conduc...

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  3. In a crystal, the permitted energy states of electrons are present

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  4. There is no hole current in good conductors, because

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  5. The energy band gap is maximum in

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  6. The forbidden energy gap in an intrinsic semiconductor is

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  7. In a good conductor, the energy levels in a valence band

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  8. Solids having highest energy level partially filled with electrons are

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  9. At ordinary temperature, an increase in temperature, increases the con...

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  10. The width of the forbidden band will be small in

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  11. Electrons in the outermost shell of an atom are called

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  12. In intrinsic semiconductor at room temperature, the number of electron...

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  13. Fermi energy is the

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  14. In which of the following band an electron cannot lie in a crystal ?

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  15. In a pure conductor, the value of the forbidden energy gap is

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  16. The forbidden energy gap in a semiconductor is of the order of

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  17. If there is no hole current in a substance, if must be

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  18. Which one of the following is an amorphous solid?

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  19. In an insulator, the forbidden energy gap between the valence band and...

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  20. What is the forbidden energy gap (in joule) for a Germanium crystal ?

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