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For an intrinsic semiconductor, the stat...

For an intrinsic semiconductor, the statement//statements that hold good are:

A

an intrinsic semiconductor is a perfect insulator at 0K

B

the number of charge carriers varies with temperature in an exponential way

C

the number density of electrons in always more than the number density of holes

D

the mobility of electrons is more than that of holes.

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The correct Answer is:
A, B, D
The choices , and are correct, whereas the choice is incorrect because in an intrinsic semiconductor, the number density of electrons is equal to that of holes.
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  8. In boolean algebra, if A=1 and B=0 then the value of A+barB is

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  10. A piece of pure semiconductor of silicn of size 1cm xx 1 cm xx 1 mm is...

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  11. A piece of pure semiconductor of silicn of size 1cm xx 1 cm xx 1 mm is...

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  12. A piece of pure semiconductor of silicn of size 1cm xx 1 cm xx 1 mm is...

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  13. When a p-type semiconductor is brought into a close contact with n-typ...

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  14. When a p-type semiconductor is brought into a close contact with n-typ...

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  15. A PN junction diode when forward biased has a drop of 0.5 V which is a...

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  16. The diode used in the circuit shown in the figure has a constant volta...

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  17. For a transistor connected in common emitter mode, the voltage drop ac...

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