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A transistor is operated in common emitt...

A transistor is operated in common emitter configuration at constant collector voltage `V_(c) = 1.5V` such that a change in the base current from `100 mu A` to `150 mu A` produces a change in the collector current from `5mA` to `10 mA`. The current gain `(beta)` is

A

67

B

75

C

100

D

50

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )-Assignment section -C (Previous years type question)
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  7. Zener diode is used for:-

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  9. Choose the false statement from the following.

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  10. Copper has face-centered cubic (fcc) lattice with interatomic spacing ...

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  11. The cations and anions are arranged n alternate form in:

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  12. In semiconductors at a room temperature

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  13. In good conductors of electricity the type of bonding that exist is

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  15. In a p-n junction depletion region has a thickness of the order of

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  16. Pure Si at 300 K has equal electron (n(e)) and hole (n(h)) concentrati...

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  17. In a reverse biased p-n junction, when the applied bias voltages is eq...

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  18. In the case of forward biasing of PN-junction, which one of the follow...

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  19. When arsenic is added as an impurity to silicon, the resulting materia...

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  20. To obtain a p-type germanium semiconductor, it must be doped with

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