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In an NPN transistor 10^(10) electrons e...

In an NPN transistor `10^(10)` electrons enter the emitter in `10^(-6)`s and 2 % electrons recombine with holes in base then current gain `alpha` and `beta` are

A

0.49,9.8

B

0.58,4.9

C

0.78,49

D

0.98,49

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The correct Answer is:
D
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RESONANCE-SEMICONDUCTORS-Exercise
  1. For a transistor the value of alpha is 0.9. beta value is

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  2. In a PNP transistor working as common-base amplifier, current gain is ...

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  3. In an NPN transistor 10^(10) electrons enter the emitter in 10^(-6)s a...

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  4. In the following common emitter configuration an NPN transistor with c...

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  5. An n - p- n transistor is connected in common - emitter configurarati...

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  6. In an NPN transistor the values of base current and collector current ...

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  7. In a common emitter circuit, if V(CE) is changed by 0.2 V, then collec...

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  8. Which of the following statement is not true ?

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  9. The symbolic representation of four logic gates are given in Fig.The l...

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  10. The output of OR gate is 1

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  11. Following diagram performs the logic function of-

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  12. The truth table given below is for: |(A,B,X),(0,0,0),(0,1,0),(1,0,0)...

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  13. NAND gate is-

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  14. The truth table given below is for which gate? |(A,B,C),(0,0,1),(0,1...

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  15. In the given circuit as shown the two input waveform A and B are appli...

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  16. For the logic circuit shown the boolean relation is-

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  17. For the given combination of gates, if the logic states of inputs A,B,...

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  18. The boolean equation of NOR gate is-

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  19. According to de morgan's theorem-

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  20. What will be the input of A and B for the Boolean expression bar((A+B)...

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