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A common emitter (CE) transistor has a c...

A common emitter (CE) transistor has a current gain of 100. If emitter current is 8.08 mA, find the base and collector current.

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Semiconductor Devices-Exercise
  1. For a common emitter amplifier, dc (direct current) current gain is 60...

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  2. For a common emitter amplifier, dc (direct current) current gain is 20...

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  3. A common emitter (CE) transistor has a current gain of 100. If emitter...

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  4. A common emittertransistor has current gain of 96. If base current is ...

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  5. A semiconductor has electron mobility as 2.2 xx 10^4 cm^2V^-1S^-1 andh...

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  6. Draw a circuit diagram with a p-n junction in forward bias.

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  7. Draw a circuit diagram with a p-n junction atreverse bias.

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  8. State the factors, which controls intensity of light, emitted by a LED...

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  9. Draw a circuit diagram to show how a photodiode is biased.

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  10. State the factors, which controls wavelength of light, emitted by a LE...

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  11. What do you mean by depletion region in a p-n junction ?

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  12. Draw a PN-Junction with reverse bias.

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

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  14. Write in brief about Photo-diodes.

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  15. Explain the terms depletion layer

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

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

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

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

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

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