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A conductor, an insulator, a semiconduct...

A conductor, an insulator, a semiconductor and an alloy are heated by `20^@C` above the room temperature. Then there is an increase in the conductivity of the

A

Conductor

B

Semiconductor

C

Insulator

D

Alloy

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The correct Answer is:
B
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  6. A semiconductor is known to have an electron concentration of 6xx10^(1...

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

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  9. The energy band diagrams for three semiconductor samples of silicon ar...

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  10. In case of a semiconductor, which of the following statement is wrong?

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  11. Intrinsic semiconductor is electrically neutral. Extrinsic semiconduct...

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  12. The maximum wavelength of electromagnetic radiation, which can create ...

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  13. In a pure silicon (n(i)=10^(16)//m^(3)) crystal at 300K, 10^(21) atoms...

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  14. There are two Ge crystals A and B. Few aluminium atoms are added to A...

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  15. By increasing the temperature , the specific resistance of a conductor...

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  16. In semiconductors at a room temperature

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  17. Which of the following , when added as an impurity, into the silicon, ...

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  18. A semiconductor has phosphorus as impurity, then it will have

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  19. The conductivity of a semiconductor increases with increase in tempera...

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