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Carbon , silicon and germanium have four...

Carbon , silicon and germanium have four valence elcectrons each . These are characterised by valence and conduction bands separated by energy band - gap respectively equal to ` (E_g)_(c) (E_g)_(si) ` and ` (E_g)_(Ge) `. Which of the following statements ture ?

A

`(E_(g))_(C)lt(E_(g))_(ge)`

B

`(E_(g))_(c)gt(E_(g))_(si)`

C

`(E_(g))_(c)=(E_(g))_(si)`

D

`(E_(g))_(c)lt(E_(g))_(si)`

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The correct Answer is:
B
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Carbon silicon and germanium have four valence electrons each these are characterised by valence and conduction bands separated by energy band gap respectively equal to which of the following statement is true (a) (E_(g))_(Si)lt(E_(g))_(Ge)lt(E_(g))_(c ) (b) (E_(g))_(c )lt(E_(g))_(Gelt(E_(g))_(Si) (c ) (E_(g))_(c )gt(E_(g))_(Si)gt(E_(g))_(Ge) (d)(E_(g))_(c )=(E_(g))_(si)=(E_(g))_(Ge)

Carbon, silicon and germanium atoms have four valence electrons each. Their valence and conduction bands are separated by energy band gaps represented by (E_(g))_(C),(E_(g))_(Si) and (E_(g))_(Ge) , respectively. Which one of the following relationship is true in their case?

Carbo , silicon and Germanitum atomshave four valence electrons each . Their velence and conduction bands are separeated by energy nands gaps represented by (E_g)_C , (E_g)_(Si), (E_g)_(Ge) repectively . Which relativon is correct ?

Carbon, silicon and germanium have four valence electrons each. The most appropriate statement for these elements (at room temperature) is

RESONANCE-SEMICONDUCTORS-Exercise 3
  1. The output of OR gate is 1

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  2. Zener diode is used as

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

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  4. Application of a forward biase to a p-n junction:

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  5. A transistor -oscillator using a resonant circuit with an inductor L (...

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  6. A transistor is operated in common emitter configuration at constant c...

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  7. A forward biased diode is

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  8. A photocell employs photoelectric effect to convert

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  9. The radius of germanium (Ge) nuclide is measured to be twice the radiu...

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  10. Semiconductor Ge has forbidden gap of 1.43 eV. Calculate maximum wavel...

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  11. In the following circuit, the output Y for all possible inputs A and B...

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  12. In the energy band diagram of a material shown below, the open circles...

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  13. A common emiiter amplifier has voltage gain 50 and current gain is 25....

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  14. Draw the truth table for the logic gate arrangement shown in the figur...

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  15. A p-n photodiode is made of a material with a band gap of 2.0 eV. The ...

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  16. The circuit is equivalent to

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  17. (a) For given transistor circuit, the base current is 10muA and the co...

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  18. A p-n photodiode is fabricated from a semiconductor with a band gap of...

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  19. The symbolic representation of four logic gates are given in Fig.The l...

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  20. (a) Draw the circuit diagram of reversed bias p-n junction. (b). Dra...

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