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What is photo cell ? State its three app...

What is photo cell ? State its three applications.

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Semiconductor Devices-Exercise
  1. Why a transistor cannot be used as a rectifier ?

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

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

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

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

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

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

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

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

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

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

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

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

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  14. Define Rectification. With the help a circuit diagram explain the work...

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  15. What is junction diode ? How is depletion layer formed ? Draw its forw...

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  16. What is transistor ? Give the symbols of n-p-n and p-n-p transistor.

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  17. Explain with diagram, the working of a transistor as a common-emitter ...

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  18. What is rectifier ? Explain the working of junction diode as a full wa...

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  19. Discuss the variation of current with voltage in a P-N Junction diode ...

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  20. With the help of circuit diagram, explain theV-l characteristics of p-...

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