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By increasing the temperature the specif...

By increasing the temperature the specific resistance of a conductor and a semiconductor

A

increase for both

B

decreases for both

C

increases, decreases

D

decreases, increases

Text Solution

Verified by Experts

The correct Answer is:
C
For conductor. `rho` increases as temperature rise, For semionductor `rho` decreases as temperature rises.
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NARAYNA-SEMICONDUCTOR ELECTRONICS-EXERCISE-4
  1. The energy band gap is maximum in

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  2. The part of a transistor which is most heavily doped to produce large ...

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  3. By increasing the temperature the specific resistance of a conductor a...

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  4. At absolute zero , Si acts as

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  5. A strip of copper and another of germanium are cooled from room tempe...

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  6. In the middle of the depletion layer of a reverse - biased p - n junc...

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  7. The difference in the variation of resistance with temperature in a me...

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  8. A piece of copper and another of germanium are cooled from room temper...

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  9. The manifestation of band structure in solids is due to

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  10. Energy band in solids are a consequence of

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  11. When forward bias is applied to a P-N junction, then what happence to ...

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  12. When NPN transistor is used as an amplifier

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  13. For a transistor amplifier in common emitter configuration for load im...

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  14. The electrical conductivity of a semiconductor increases when electrom...

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  15. In a full wave rectifier circuit operating from 50 Hz mains frequency ...

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  16. In a common-base amplifier, the phase difference between the input sig...

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  17. A solid which is not transperent to visible light and whose conductivi...

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  18. If the ratio of the concentration of electron to that of holes in a se...

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  19. In a common base mode of transistor, collector current is 5.488 mA for...

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  20. If the lattice constant of this semiconductor s decreases, then which ...

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