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Is there any benefit to adding trivalent...

Is there any benefit to adding trivalent or pentavalent impurity to the copper ?

A

Yes

B

No

C

Yes and No

D

Nothing can be said

Text Solution

Verified by Experts

The correct Answer is:
B
No
Adding impurity in copper reduces its conductivity so that the flow decreases.
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Trivalent and pentavalent impurities are ….., respectively in terms of electric.

KUMAR PRAKASHAN-SEMICONDUCTOR ELECTRONICS : MATERIALS, DEVICES AND SIMPLE CIRCUITS -Section-D : Multiple Choice Questions (MCQs) (MCQs From .DARPAN. Based On Textbook)
  1. To make a p-type semiconductor out of pure silicon, it has to mix atom...

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  2. p-type semiconductor is formed when …….. (A) As impurity is mixed i...

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  3. Is there any benefit to adding trivalent or pentavalent impurity to th...

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  4. Trivalent and pentavalent impurities are ….., respectively in terms o...

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  5. The ratio of number density of free electron and hole in p-type semico...

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  6. The number density of electron is 4.5xx10^(22)m^(-3) and number densi...

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  7. The number density of electron is 7xx10^(12)m^(-3) and number density ...

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  8. Which of the diagram shown in figure represents variation of total me...

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  9. What is the unit of energy?

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  10. n-type semiconductor ………

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  11. In one atom of As is added per 10^(3) atoms of Ge then the number of f...

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  12. If one Al atom added to 10^(9) per atom of Si then charge on holes in ...

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  13. In pure crystal of silicon at 300 K temperature having number of atom ...

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  14. Therefore are 6xx10^(19) electrons per unit cubic metre of pure semico...

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  15. The number density of electron is a semiconductor is 8xx10^(13) cm^(-3...

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  16. What amount of inpurity of atomic density in added toform N-type semic...

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  17. Potential near the junction in p-n junction is zero then potential at ...

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  18. In p-n junction, depletion barrier near the junction is due to ………

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  19. If proportion of impurity is less in p-n junction ……..

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  20. If the proportion of impurity increases in semiconductor in p-n juncti...

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