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doping materials are caled impurities be...

doping materials are caled impurities because

A

they make semiconductrs less pure

B

they alter cystal tructure

C

they chnge chemical properties

D

they change the no. of charge carriers

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TARGET PUBLICATION-SEMICONDUCTORS-EXERCISE
  1. in germanium crystal.a hole is provided by aimpurity.

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  2. on doping germanium metal with a little amount of indium, one gets

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  3. doping materials are caled impurities because

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  4. a hole in a semiconductcorr is rather diff. from an electron because i...

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  5. suitable impurities are added to a semiconductor depending on its use....

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  6. The donor atoms have energy level

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  7. The diode is called an electronic valve since

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  8. in a semiconductor diode, the abrrier potential offers opposition to ...

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  9. in a p -n junction , there is no appreciable current if

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  10. The potential barrier developed in a junction diode opposes

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  11. when a p junction dioode is forward biased, the flow of cufrent across...

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  12. in p-n junction diode, holesdiffuse from p-region to n-region because

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  13. Depletion layer in the P-N junction is caused by

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  14. The potential difference developed across the junction due to migratio...

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  15. in asemiconductor diode, reverse bia current is due to drift of ffree ...

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  16. a p-n junction diode is sai to be forwarded biased whwn a potential di...

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  17. an ideal diode

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  18. a p-n junction diode cannot be used

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  19. leakage current in ajunction diode

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  20. Assertion : Semiconductor devices are thermally stable. Reason: No he...

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