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The electrical conductivity of pure germ...

The electrical conductivity of pure germanium can be increased by

A

`(i),(ii)`

B

(i),(iii),(iv)`

C

`(ii),(iii)`

D

all

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The correct Answer is:
D
NA
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CP SINGH-SEMICONDUCTORS-Exercises
  1. The probbility of electrons to be found in the conduction band of an i...

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  2. In a semiconducting material the mobilities of electrons and holes are...

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  3. The electrical conductivity of pure germanium can be increased by

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  4. A semiconductor is doped with a donor impurity

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  5. If N(P) and N(e) be the numbers of holes and conduction electrons in a...

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  6. The impurity atoms with which pure silicon should be doped to make a p...

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  7. The impurity atoms with which pure silicon may be droped to make it a ...

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  8. Choose the correct option

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  9. Majority carriers in a semiconductor are

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  10. Intrinsic semiconductor is electrically neutral. Extrinsic semiconduct...

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  11. Which of the following statements is not true?

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  12. Which statement is correct?

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  13. The valance of the impurity atom that is to be added to germanium cry...

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  14. When N-type of semiconductor is heated

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  15. A N-type silicon sample of width 4xx10^(-3)m, thickness and length 6xx...

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  16. A semiconductor has an electron concentration of 8xx10^(13) per cm^(3)...

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  17. A Ge specimen is dopped with Al. The concentration of acceptor atoms i...

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  18. Pure Si at 500K has equal number of electron (n(e)) and hole (n(h)) co...

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  19. A silicon specimen is made into a P-type semiconductor by dopping, on ...

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  20. Which of the following energy band diagrams shows the N-type semicondu...

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