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a semiconductor has equal electron and h...

a semiconductor has equal electron and hole concetration of`2x10^8 m^(-3)`. On doping with a certain impurity, the electron concentration increases to `4x10^(10)m^(-3)`, then the new hole concentration of the semiconductor is

A

`10^6m^(-3)`

B

`10^8m^(-3)`

C

`10^(10)m^(-3)`

D

`10^(12)m^(-3)`

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TARGET PUBLICATION-SEMICONDUCTORS-EXERCISE
  1. C and Si bot have same lattice structure , having bomnding electrons ...

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  2. the density of an electron-hole pair in a pure germanium is3 ×10^(16)m...

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  3. a semiconductor has equal electron and hole concetration of2x10^8 m^(-...

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  4. in an n - type semiconductor, which of the foll.statement is true ?

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  5. in n type semiconductor , electrons are majority charge carriers but i...

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  6. the barrier potential of p-n junction depends on : a.type of semicond...

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  7. with forwardf biased mode, the p-n junction diode.

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  8. the forward biased diode connection is

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  9. whicch one of the foll. Represents reverse bias diode?

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  10. p-n junction diods are arranged as shown in the figures (A and B). Ide...

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  11. pick out the statement which is not CORRECT

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  12. aplication of a forward bias to a p-n junction

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  13. the change in curtrent through a junction diode is 1.2mA when the forw...

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  14. consider the junction diode as ideal. The value of current flowin g th...

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  15. In the figure shown, if the diode forward voltage drop is 0.2V, the vo...

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  16. assume that even each diode shown in the figure has a forward basis r...

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  17. for the current shiown in the figure . The equivalent resistance betwe...

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  18. the given circuit has two ideal diodes connected as shown in the figur...

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  19. the reading of the ammeter for a silicon diode in the given circuit is...

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  20. when a semiconductor device is connected in series with a battery and ...

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