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in case of a semiconductor, which of the...

in case of a semiconductor, which of the foll. Statements is wrong?

A

doping increases conductivity

B

temperature coefficent of resistance is negative

C

resistivity is in between that of a conductor and insulator

D

at absolute zero temperature, semiconductor behaves like a conductor

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TARGET PUBLICATION-SEMICONDUCTORS-EXERCISE
  1. choose the INCORRECTT statement

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  2. thermistor is a temperature sensitivedevice

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  3. in case of a semiconductor, which of the foll. Statements is wrong?

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  4. electrical conductivity of a silicon is

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  5. the conductivity (sigma)of a solid is given by [n=no. of carriers per ...

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  6. electrical conductivity of a semiconductor

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  7. at room temperature,electrical conductivity of semiconductor is

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  8. Assertion:the resistivity of a semiconductor increases with temperatur...

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  9. in a good conductor the energy gap between the conduction band and the...

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  10. energy band in solids are a consequence of

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  11. three semiconductors are arranged in the incresing order of their gap ...

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  12. Assertion: the energy gap between the valence band and conduction band...

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  13. which one of the energy band diagrams shown in the figure coresponds t...

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  14. electronic configuration of silicon is.

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  15. in a semiconductor,

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  16. In an intrinsic semiconductor

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  17. let np and ne be the no. oh holes and conduction electrons in a semic...

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  18. resistivity of pure geramanium crystal at room temperature in order of

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  19. in a pure silicon (ni = (10^16)/m^3) crystal at 300 k ,10^21 atoms of ...

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  20. to a germanium sample , trace sof gallium are added as an imourity. Th...

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