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Write briefly, how a Zener diode acts as...

Write briefly, how a Zener diode acts as voltage regulator.

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Zener diode is used for:

Draw the symbol and the reverse bias I-V characterstics of a zener diode. Explain briefly, which property of the characterstics enables us to use zener diode as voltage regulator.

In figure shows the V-I characterstics of semiconductor diode. Briefly explain, how this diode can be used as a voltage regulator.

Which special type of diode can act as a voltage regulator? Give the symbol of this diode and draw the general shape of its V-I characteristics.

PUNJAB BOARD PREVIOUS YEAR PAPERS-Semiconductor Devices-Exercise
  1. What do you mean by depletion region in a p-n junction ?

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  2. Draw a PN-Junction with reverse bias.

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  3. Write briefly, how a Zener diode acts as voltage regulator.

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  4. Write in brief about Photo-diodes.

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  5. Explain the terms depletion layer

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  6. Explain the terms potential barrier for a junction diode.

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  7. In a transistor, base is made very thin.Explain.

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  8. Why a transistor cannot be used as a rectifier ?

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  9. The resistance of a p-n junction is low, when forward biased and is hi...

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  10. What is photo cell ? State its three applications.

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  11. Write briefly, how a Zener diode acts as voltage regulator.

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  12. Why does the thickness of depletion layer of pn-junction increases in ...

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  13. What is a solar cell ? How does it work ? Write its one use.

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  14. Explain how the depletion layer and barrier potential are formed in pn...

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  15. Explain forward bias and reverse bias of the junction diode.

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  16. With the help of circuit diagram explain working of junction diode as ...

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  17. With the help of labelled circuit diagram, explainthe working of trans...

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  18. With the help of circuit diagram, explain the working of transistor as...

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  19. With the help of circuit diagram, explain the working of transistor as...

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  20. With the help of suitable diagrams, explain the function of p-n juncti...

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