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Which of the energy band diagrams shown ...

Which of the energy band diagrams shown in the figure corresponds to that of a semiconductor?

A

B

C

D

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The correct Answer is:
D
In semiconductors the forbidden energy gap between the valence band and conduction band is very small almost equal to kT. Moreover, valence bank is completely filled where as conduction band is empty.
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RESONANCE-SEMICONDUCTORS-Exercise 3
  1. Which of the energy band diagrams shown in the figure corresponds to t...

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  2. When p-n junction diode is forward biased then

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  3. When npn transistor is used as an amplifler

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  4. The electrical conductivity of a semiconductor increases when electrom...

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  5. In a common base ampifier , the phase difference between the input sig...

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  6. If a full wave reactifier circuit is operating from 50 Hz mains, the f...

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  7. If the ratio of the concentration of electron to that of holes in a se...

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  8. In a common base mode of a transition , the collector current is 5.48...

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  9. If the lattice constant of this semiconductor is decreased, then which...

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  10. The circuit has two oppositively connected ideal diodes in parallel wh...

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  11. If a p-n junction diode, a square input signal of 10 V is applied as s...

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

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  13. A working transitor with its three legs marked P, Q and R is tested us...

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  14. In the circuit below, A and B represents two inputs and C represents t...

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  15. The Fig shown input waveforms A and B to a logic gate. Draw the output...

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  16. a p -n juction (D) shown in the figure can act an a rectifier An alter...

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  17. The output of an OR gate is connected to both the inputs of a NAND gat...

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  18. Truth table for system of four NAND gates as shown in figure is : .

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  19. The 1- V characteristic of on LED is

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  20. The forward biased diode connection is

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  21. Two identical p-n junctions may be connected in series in which a batt...

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