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Two pieces one of germinium and the othe...

Two pieces one of germinium and the other of aluminium are cooled from `T_(1) K` to `T_(2) K`. The resistance of

A

aluminium increases and that of germanium decrease

B

each of them decreases

C

aluminium decreases and that of germanium increases

D

each of them increases

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The correct Answer is:
C
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NARAYNA-SEMICONDUCTOR ELECTRONICS-C.U.Q (INTRINSIC AND EXTRINSIC SEMICONDUCTORS)
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  2. The conduction band and valency band of a good conductors are

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  3. Two pieces one of germinium and the other of aluminium are cooled from...

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  4. In intrinsic semiconductor at room temperature the no. of electrons an...

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  5. Band gap in insulator is of the order

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  6. In p-type semiconductor conduction in due to

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  7. In an intrinsic semiconductor, the fermi energy level is

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  8. With increase in temperature in an intrinsic semiconductor the ration ...

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  9. To obtain n-type extrinsic semiconductor, the impurity element to be a...

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  10. What are the majority carriers in a p-type semiconductor?

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  11. The objective of adding impurities in the extrinsic semiconductor is

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  12. In intrinsic semiconductor conductivity is due to.

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  13. In intrinsic semiconductor conductivity is due to.

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  14. When the conductivity of a semiconductor is only due to breaking of co...

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  15. The potential barrier at PN junction is due to

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  16. A PN junction diode cannot be used

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  17. p-n junction diode acts as

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  18. On increasing reverse voltage in a p-n junction diode the value of rev...

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  19. In forward bias the depletion layer behaves like

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  20. p-n junction in reverse bias behaves like

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