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What is light emitting diode (LED) ? Men...

What is light emitting diode (LED) ? Mention two important advantages of LEDs over con-ventional lamps.

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PRADEEP-ELECTRONIC DEVICES-Exercise
  1. The diagram Fig.12 shown a piece of pure semiconductor S in series wit...

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  2. Draw the circuit diagram of an illuminated photodiode in reverse bias?...

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  3. What is light emitting diode (LED) ? Mention two important advantages ...

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  4. Mention the important considerations required while fabricating a p-n ...

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  5. Give reasons for the following: (i) High reverse voltage do not appe...

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  6. Write the function of three segments of a transistor.

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  7. Sketch the three modes of study of n-p-n junction transistor.

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  8. Explain that a transistor can be used as a switch.

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  9. Discuss briefly the concept of an amplifier.

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  10. Draw a circuit diagram of a transistor amplifier in CE configuration. ...

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  11. Explain the advantages and disadvantages of semiconducting devices com...

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  12. Give the logic symbol, truth table and Boolean expression for OR gate....

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  13. Give the logic symbol, truth table and Boolean expression for AND gate...

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  14. How is NOT gate realised? Explain.

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  15. What is logic gate? Distinguish between AND and OR gates.

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  16. What are main logic gates? How many types are they? Draw their symbols...

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  17. Two signals A, B as given below are applied to (i) AND (ii) NOR and (i...

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  18. Give the logic symbol, Boolean expression and truth table of NAND gate...

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  19. Identify the logic gate equivalent to the circuit shown in the Fig.Dra...

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  20. Discuss an integrated circuit. Explain the meaning of SSI, MSI, LSI an...

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