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A silicon specimen is made into a P-type...

A silicon specimen is made into a `P`-type semiconductor by doping, on an average, one helium atoms per `5xx10^(7)` silicon atoms. If the number density of atoms in the silicon specimen is `5xx10^(28) at om//m^(3)` then the number of acceptor atoms in silicon per cubic centimeter will be

A

`2.5xx10^(30)`

B

`2.5xx10^(35)`

C

`1.0xx10^(13)`

D

`1.0xx10^(15)`

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The correct Answer is:
D
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AAKASH INSTITUTE-SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS-Assignment (Section -A (Objective Type question (One option is correct))
  1. The circuit is equivalent to

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  2. The output y, when all three inputs are first high and then low, will ...

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  3. A silicon specimen is made into a P-type semiconductor by doping, on a...

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  4. Consider the junction diode is ideal. The value of current through the...

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  5. Negative feedback

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  6. The current obtained from a simple filterless reactifier is

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  7. The depletion region of p-n junction has a thickness of the order of

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  8. In a properly biased transistor-

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  9. In an n-p-n transistor, the collector current is 10 mA. If 90% of the ...

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  10. Application of a forward biase to a p-n junction:

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  11. Intrinsic semiconductor at absolute zero temperature is a

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  12. An NPN-transistor circuit is arranged as shown in figure. It is

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  13. Four equal resistors, each of resistance 10 ohm are connected as shown...

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  14. In a semiconducting material the mobilities of electrons and holes are...

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  15. Which of the following logic gates is a universal gate ?

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  16. A full wave rectifier circuit along with the input and output are show...

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  17. In a p-n junction diode having depletion layer of thickness 10^(-6)m, ...

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  18. What is the voltage gain in a common emitter amplifier, where output r...

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  19. Barrier potential of a p-n junction diode does not depend on

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  20. To which logic gate does the truth tabel given in the figure correspon...

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