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A npn transistor conducts when...

A `npn` transistor conducts when

A

Both collector and emitter are positive with respect to the base.

B

Collector is positive and emitterl is negative with respect to the base.

C

collector is positive and emitter is at same potential as the base.

D

Both collector and emitter are negative with respect to the base.

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The correct Answer is:
B
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RESONANCE-SEMICONDUCTORS-Exercise
  1. In a properly biased transistor-

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  2. A npn transistor conducts when

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  3. A npn transistor conducts when

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  4. Which one of the following circuits shows correct biasing of a PNP tra...

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  5. In the use of transistor as an amplifier

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  6. An amplifier is nothing but an oscillator with-

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  7. When N-P-N transistor is used as an amplifier-

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  8. A common emitter circuit is used as an amplifier, its current gain is ...

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  9. In an NPN transistor the collector current is 10 mA. If 90% of electro...

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  10. Which of the following is true?

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  11. For transistor relation in current amplification factors is-

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  12. For a transistor the value of alpha is 0.9. beta value is

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

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

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

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

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

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

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  19. Which of the following statement is not true ?

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

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