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When n-p-n transistor is used as an ampl...

When n-p-n transistor is used as an amplifier

A

electrons move from collector to emitter

B

electrons move from emitter to collector

C

electrons move from collector to base

D

holes move from emitter to collector

Text Solution

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The correct Answer is:
B
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DISHA PUBLICATION-SEMICONDUCTOR ELECTRONICS : METERIALS, DEVICES AND SIMPLE CIRCUITS-EXERCISE -1: CONCEPT BUILDER (TOPICWISE)
  1. In a common-base amplifier, the phase difference between the input sig...

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  2. The current gain beta may be defined as

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  3. When n-p-n transistor is used as an amplifier

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  4. Which of the following relation holds true regardless of circuit confi...

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  5. If the given transistor is used as an amplifier then for input resista...

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  6. When the base current in a transistor is changed from 30 mu Ato 80 mu ...

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  7. A transistor is connected in common emitter configuration. The collect...

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  8. A pnp transistor is used in common-emitter mode in an amplifier circui...

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  9. In a npn transistor 10^(10) electrons enter the emitter in 10^(–6) ...

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  10. The current gain alpha of a transistor in common base mode is 0.995 . ...

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  11. A working transitor with its three legs marked P, Q and R is tested us...

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  12. A transistor has beta = 40. A change in base current of 100muA, produc...

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  13. A transistor has a base current of 1 mA and emitter current 90 mA. The...

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  14. In a common emitter transistor amplifier, beta=60, R(0)=5000Omega and ...

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  15. The current gain in transistor in common base mode is 0.99. To change ...

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  16. In a transistor, the change in base current from 100 muA to125 muA cau...

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  17. The output of a NAND gate is 0

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  18. What is the value of A.C + A.B.C where A, B and C are inputs?

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  19. The output of an OR gate is connected to both the inputs of a NAND gat...

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  20. When the two inoputs of a NAND gate are shorted, the resulting gats is

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