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The state of the energy gained by valenc...

The state of the energy gained by valence electrons when the temperature is raised or when electric field is applied is called as

A

valence band

B

conduction band

C

forbidden band

D

none of these

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The correct Answer is:
B
NA
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CP SINGH-SEMICONDUCTORS-Exercises
  1. Solids having highest energy level partially filled with electrons are

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  2. In semiconductors at a room tempreture

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

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  4. Energy band in solids are a consequence of

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  5. Which of the following is semi-conductor?

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

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

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

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

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

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

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

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  13. A semiconductor is doped with a donor impurity

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  14. If N(P) and N(e) be the numbers of holes and conduction electrons in a...

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  15. The impurity atoms with which pure silicon should be doped to make a p...

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  16. The impurity atoms with which pure silicon may be droped to make it a ...

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  17. Choose the correct option

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  18. Majority carriers in a semiconductor are

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

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  20. Which of the following statements is not true?

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