In an n-type semiconductor, donor valence band is

above the conduction band of the host crystal

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close to the valence band of the host crystal

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close to the conduction band of the host crystal

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below the valence band of the host crystal

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Solution

The correct option is B close to the conduction band of the host crystal
The donor valence band lies little below the conduction band of the host crystal.

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Similar questions

Which of the following statements are true about metals ?

(a) Valence band overlaps with conduction band

(b) The gap between valence band and conduction band is negligible

(d) Valence band may remain partially filled

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