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Why is a resistance connected in series with a zener diode when used in a circuit?

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CHETANA PUBLICATION-Semiconductor-EXERCISE
  1. Why is a resistance connected in series with a zener diode when used i...

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  2. Select and write the most appropriate answer from all the given altern...

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  3. A photo diode is used in

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  4. When P-N-P junction transistor is used as amplifier in C-B mode, then

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  5. A transistor act as an open switch when it is in:

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  6. The transistor provide good power amplification when they are used in:

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  7. Avalanche breakdown in a zener diode takes place due to:

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  8. Aseries resistance is connected is the zener diode circuit to:

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  9. Full wave rectifier requires:

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  10. Colour of the radiationemitted by LED containing silicon carbide and ...

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  11. In any type of transistor one part of the transistor which supplies ma...

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  12. A LED emits visible light when its

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  13. A Solar cell is operated on the principle of

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  14. If a full wave rectifier is operating from 50Hz mains frequency, the f...

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  15. The equation of AND gate is

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  16. Function of limiting resistance in LED is

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  17. An AND gate is equivalent to

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  18. The relation betweenalpha(dc) and beta(dc) and in a transistor is

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  19. In a transistor isan amplifier emitter base junction it is

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  20. In a BJT, the largest current flow occurs

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  21. A logic gate is an electric circuit which

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