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What is an oscillator ? Draw a labelled ...

What is an oscillator ? Draw a labelled circuit diagram for an oscillator using PNP transistor.What is the function of feed back coil in it ? Write an expression for the frequency of waves produced by it.What is the use of waves produced by it ?

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BETTER CHOICE PUBLICATION-SEMI CONDUCTOR DEVICES-Short Answer Type Questions
  1. Write briefly, how a Zener diode acts as voltage regulator.

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

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  3. What is an oscillator ? Draw a labelled circuit diagram for an oscilla...

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

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  5. Draw a labelled circuit diagram of a full wave rectifier using junctio...

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

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  7. Write two advantages and two disadvantages of transistors over vacuum ...

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

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  9. Draw the circuit diagram of a half wave rectifier using a junction dio...

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  10. Explain the terms depletion layer

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  11. Write in brief about Photo-diodes.

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  12. In a transistor, base is always thin and lightly doped. (True/false)

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

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

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  15. How does the width of the depletion region of a p-n junction vary if t...

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

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

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

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  19. What is an oscillator ? Draw a labelled circuit diagram for an oscilla...

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

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