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a p -type semiconductor is (i) a silicon...

a p -type semiconductor is (i) a silicon crystal doped with arsenic impurity (ii)a silicon crystal doped with aluminium impurity (iii) a germanium crystal doped with boron impurity (iv) a germanium crystal doped with phosphorous impurity

A

I and ii are correct

B

ii and iii are correct

C

I and iv aare correct

D

only i is correct

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TARGET PUBLICATION-SEMICONDUCTORS-EXERCISE
  1. The given graph represents V-I characteristics for a semiconductor dev...

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  2. A wire of aluminum and a wire of germanium are cooled to a temperature...

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  3. which of the foll. Statement is not true?

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  4. In Gallium Arsenide material, Ohm's law does not hold good because

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  5. An LED is constructed from a p-n junction based on a certain semi cond...

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  6. Generally, the no. of electrons in the valence shell of good conductor...

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  7. the process of addding impurities to the pure semiconductor is called

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  8. the intrinsic semiconductors becomes an insulator at

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  9. a p -type semiconductor is (i) a silicon crystal doped with arsenic im...

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  10. when forward bias is appllied to as p-n junction . Then wat happens to...

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  11. a Ge specimen is doped with AI the concentartion of acceptor atoms is ...

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  12. if the two ends p and n of p-n junction diode are joined by a wire,

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  13. a light emitted diode is

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  14. in remote controlled receivers , the sensors are

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  15. the temoperature -coefficient of resistivity of semiconductors is

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  16. carbon , silicon and germanium have four valence electrions each . The...

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  17. the no. densities of electrons and holes in a pure germanium at room t...

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  18. the circuit below represents a

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  19. The maximum wavelength which a photodiode can detect with Eg =0.74eV i...

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  20. When p-n junction is reverse biased, then the width of barriers potent...

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