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Define: Extrinsic semiconductors....

Define: Extrinsic semiconductors.

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Define: Intrinsic semiconductors.

In Extrinsic Semiconductors

State the different types of extrinsic semiconductors.

Distinguish between intrinsic semiconductors and extrinsic semiconductors.

in a semiconductor,

In an intrinsic semiconductor

What is the relation between number of holes and number of electrons in intrinsic semiconductor.

Intrinsic semiconductor is electrically neutral. Extrinsic semiconductor having large no. of current carriers would be

the intrinsic semiconductors becomes an insulator at

Explain the behaviour of intrinsic semiconductor at absolute temperature and at room temperature.

CHETANA PUBLICATION-SOLID STATE-EXERCISE
  1. Define: Extrinsic semiconductors.

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  2. A compound having bcc geometry has atomic mass 50. Calculate the densi...

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  3. An element has a body centred cubic structure with a cell edge of 288 ...

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  4. X-ray diffraction studies show that copper crystallizes in an fcc unit...

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  5. A compound forms hexagonal close packed structure. What is the total n...

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  6. Atoms of element B form hcp lattice and those of the element A occupy ...

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  7. Gold occurs as face centred cube and has a density of 19.30 kg dm. Cal...

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  8. What is the ration of packing effciency in fcc and bcc crystals of the...

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  9. Sodium metal crystalizes in bcc structure with the edge length of unit...

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  10. Niobium forms bcc structure. The density of niobium is 8.55 g cm^-3 an...

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  11. Molecular solids are

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  12. Which of the following is not correct?

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  13. Is solids, the constitutent particles may be

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  14. A single substance that exists in two or more forms is called.

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  15. Graphite is a

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  16. Diamond is a

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  17. The ratio of close packed atoms to tetrahedral holes in cubic pakcing ...

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  18. The ratio of closed packed atoms to octahedral holes in hexagonal clos...

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  19. The number of tetrahedral sites per sphere in cpp structure is

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  20. The number of tetrahedral sites per sphere in cpp structure is

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  21. The packing efficiency for a body centred cubic Structure is

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