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Platinum and silicon are cooled after he...

Platinum and silicon are cooled after heating up to `250^(@)` C. :–

A

resistance of platinum will increase and that of silicon decreases

B

resistance of silicon will increase and that of platinum decreases

C

resistance of both will decreases

D

resistance of both increases

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The correct Answer is:
B
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MOTION-ELECTRONICS - SEMI CONDUCTOR-EXERCISE - 1
  1. On increasing the temperature the specific resistance of a semiconduct...

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  2. Platinum and silicon are cooled after heating up to 250^(@) C. :–

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  3. The atomic bonding is same for which of the following pairs :–

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  4. Which of the following energy band diagrams shows the N-type semicondu...

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  5. Electric conduction in a semiconductor takes place due to

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  6. An electric field us applied to a semiconductor.Let the number of char...

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  7. Lets npand ne be the number of holes and conduction electrons in an ex...

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  8. A p-type semiconductor is

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  9. When on impurity is doped into an intrinsic semiconductor, the conduct...

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  10. The intrinsic semiconductor becomes an insulator at

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  11. What will be conductivity of pure sillicon crystal at 300 K temp? if e...

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  12. In sample of pure silicon 10^(13) "atom"//cm^(3) is mixed of phosphoru...

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  13. Mobility of electron in N-type Ge is 5000 cm^(2)//"volt" sec and condu...

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  14. Forbidden energy gap of Ge is 0.75eV, maximum wave length of incident ...

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  15. Which value of potential barrier is in the range, for given PN junctio...

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  16. In a p- n junction diode not connected to any circuit,

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  17. If the two ends of a p-n junction are joined by a wire ,

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  18. The minority current in a p-n junction is :–

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  19. The majority current in a p-n junction is :–

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  20. Diffusion current in a p-n junction is greater than the drift current ...

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