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To a germanium sample, traces of gallium...

To a germanium sample, traces of gallium are added as an impurity. The resultant sample would behave like

A

a conductor

B

a P-type semiconductor

C

an N-type semiconductor

D

an insulator

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-SEMICONDUCTORS-Competitive thinking
  1. Three semi-conductor are arranged in the increasing order of their ene...

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  2. Assertion : The energy gap between the valence band and conduction ban...

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  3. To a germanium sample, traces of gallium are added as an impurity. The...

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  4. When phosphorus and antimony are mixed in germanium, then

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

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  6. In extrinsic semiconductors-

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  7. Serious draw back of the semiconductor device is

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  8. The density of an electron-hole pair in a pure germanium is 3xx 10^(1...

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  9. A semiconductor has equal electron and hole concentration of 2xx10^(8)...

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  10. The majority charge carriers in P -type semiconductor are

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  11. A P -type semiconductor can be obtained by adding

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  12. P-type semiconductors are made by adding impurity element

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  13. In a n-type semiconductor, which of the following statement is true?

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  14. If n(e) and n(h) are the number of electrons and holes in a semiconduc...

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  15. In n type semiconductor, electrons are majority charge carriers but it...

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  16. When N-type of semiconductor is heated

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  17. PN-junction diode works as a insulator, if connected

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  18. With forward biased mode, the p-n junction diode

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  19. The forward biased diode comection is

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  20. Which one of the following represents forward bias diode?

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