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which of the following is true about...

which of the following is true about the change the charge acquired by p- type semiconductors ?

A

Positive

B

Neutral

C

Neagative

D

Depends on conentraton of p impurity

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The correct Answer is:
B
when group 13 elements are dope3d in doped in group 14 element , it creates a hole in a molecule but the molecule as a whole as a whole remain neutral . Thus p- type semiconductor is neutral in nature
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NCERT EXEMPLAR-SOLID STATE-Solid State
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  2. Schottky defect is observed in crystals when ……………. .

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  9. which of the following statemets is not true about the hexagona...

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  10. in which of the following strutures corrding number for cations ...

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  11. What is the coordination number in a square close packed structures in...

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  12. which kind of defects are introduced by doping ?

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  13. silicon doped with electron rich impurity forms ………. .

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  14. which of the following statements is not true ?

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  15. which of the following is not true about the ionic solids ?

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  17. the correct order of the packing effeciency in different types o...

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  18. which of the follwing defects is also known as dislocation defect ...

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  20. the edge langth of the unit cells in terms of the radius of spher...

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