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If one Al atom added to 10^(9) per atom ...

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

A

`1.6xx10^(-10)C`

B

`1.6xx10^(-5)C`

C

`1.6xx10^(-8)C`

D

`0.6xx10^(-19)C`

Text Solution

Verified by Experts

The correct Answer is:
B
`1.6xx10^(-5)C`
1 atom of Al per `10^(9)` Si atom then at atom of `10^(23)` Si ?
`N=(1xx10^(23))/(10^(9))=10^(14)`
`therefore Q=Ne`
`=10^(14)xx1.6xx10^(-19)`
`therefore Q=1.6xx10^(-5)C`
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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)
  1. n-type semiconductor ………

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

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

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

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

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

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

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

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

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

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

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  12. Breakdown voltage means ……..

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

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  14. The ratio of resistance of forward bias and reverse bias in p-n connec...

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  15. p-side of semiconductor is earthing and -2V potential applied at n-sid...

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  16. What is responsible for depletion barrier in depletion layer?

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  17. What is the width n cm of depletion layer in p-n junction?

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  18. Increasing reverse bias voltage applied to p-n junction diode ……..

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  19. Keeping forward bias voltage from 0.6 V to 0.7 V in a p-n junction dio...

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  20. In an ammeter 0.2% of main current passes through the galvonometer. If...

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