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n-type semiconductor is obtained on dopi...

n-type semiconductor is obtained on doping intrinsic germanium by …….

A

phosphorus

B

aluminium

C

boron

D

gold

Text Solution

Verified by Experts

The correct Answer is:
A
phosphorus
Phosphorus is pentavalent impurities, one electron from impurities is donate to pure germanium and it formed n-type of semiconductor.
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KUMAR PRAKASHAN-SEMICONDUCTOR ELECTRONICS : MATERIALS, DEVICES AND SIMPLE CIRCUITS -Section-D : Multiple Choice Questions (MCQs) (MCQs asked in Competitive Exams)
  1. When will the conductivity of a Ge semiconductor decrease?

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  2. Write the symbol, truth table, function and Boolean equation for OR g...

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  3. n-type semiconductor is obtained on doping intrinsic germanium by …….

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  4. A hole in a p-type semiconductor is ……. in a covalent bond.

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  5. An AND gate is followed by a NOT gate in series with two inputs A and ...

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  6. In the shown figure the focal length of equivalent system in the form ...

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  7. Seperated p-type semiconductor is electrically ………

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  8. Name the gate, which represent the Boolean expression y=bar(A*B)

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  9. An electron hole pari is formed when light of maximum wavelength 6000...

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  10. The boolean expression of NOR gate is…….

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  11. Which of the following is not a type of tissue ?

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  12. The output of AND gate is 1, so ……

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

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  14. A sinusoidal voltage of peak value 220 volts is connected to a diode ...

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  15. In a zener diode, the reverse bias voltage is 3V and width of the depl...

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  16. Gate can be obtained by shorting both the input terminals of a NOR gat...

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  17. The figure shows the input signal A, input signal B and output signal ...

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  18. What kind of p-n junction diode does not require any kind of bias?

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  19. Which logic gate is represented by the following logic gates?

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  20. For the circuit shown in the figure, calculate the equivalent resistan...

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