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In an intrinsic semiconductor...

In an intrinsic semiconductor

A

only electrons are responsible for the flow of current

B

only holes are responsible for the flow of current

C

both holes and electrons carry current and their number is the same

D

both holes and electrons carry current but electrons are the majority carriers

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The correct Answer is:
C
NA
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CP SINGH-SEMICONDUCTORS-Exercises
  1. A pure semiconductor has

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  2. when the electrical conductivity of a semiconductor is due to the brea...

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  3. In an intrinsic semiconductor

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  4. Let n(p) and n(e), be the numbers of holes and condution electrons in ...

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  5. If tempreture is increased, the number of electron-hole pairs increase...

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  6. A strip of copper and another of germanium are cooled from room tempre...

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  7. An electric field us applied to a semiconductor.Let the number of char...

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  8. Solids having highest energy level partially filled with electrons are

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  9. In semiconductors at a room tempreture

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  10. The state of the energy gained by valence electrons when the temperatu...

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  11. Energy band in solids are a consequence of

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  12. Which of the following is semi-conductor?

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  13. Carbon , silicon and germanium have four valence elcectrons each . The...

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  14. Carbon , silicon and germanium have four valence electrons each . At r...

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  15. C and Si both have same lattice structure, having 4 bonding electrons ...

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

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  17. The probbility of electrons to be found in the conduction band of an i...

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  18. In a semiconducting material the mobilities of electrons and holes are...

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  19. The electrical conductivity of pure germanium can be increased by

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  20. A semiconductor is doped with a donor impurity

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