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The ratio of number density of free elec...

The ratio of number density of free electron and hole in p-type semiconductor is …….

A

almost same

B

less than one

C

more than one

D

zero

Text Solution

Verified by Experts

The correct Answer is:
B
less than one
In p-semiconductor `n_(e ) lt n_(h) therefore (n_(e ))/(n_(h)) lt 1`
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KUMAR PRAKASHAN-SEMICONDUCTOR ELECTRONICS : MATERIALS, DEVICES AND SIMPLE CIRCUITS -Section-D : Multiple Choice Questions (MCQs) (MCQs From .DARPAN. Based On Textbook)
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  2. Trivalent and pentavalent impurities are ….., respectively in terms o...

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

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

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

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

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  7. What is the unit of energy?

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  8. n-type semiconductor ………

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

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

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

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

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

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

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

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

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

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

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  19. Breakdown voltage means ……..

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  20. Increasing forward voltage in diode, the width of depletion layer is …...

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