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In a silicon transistor, a change of 7.8...

In a silicon transistor, a change of `7.89 mA` in the emitter current produce a change of 7.8 mA in the collector current. What change in the base current is necessary to produce an equivalent change in the collector current?

A

`9 mA`

B

`0.9 mA`

C

`0.09m A`

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH INSTITUTE-SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )-Assignment section -A (Objective Type Question)
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  3. In a common-base amplifier, the phase difference between the input sig...

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  4. The current transfer ratio beta of a transistor is 50. The input resis...

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  5. In a common emitter transistor circuit, the base current is 40 muA , t...

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  6. In a transistor the base is very lightly doped as compared to the emit...

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  7. A transsitor is operated in CE configuration at V(CC) = 2 V such that ...

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  8. The input resistance of a silicon transistor is 665Omega. Its base cur...

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  9. The relationship between alpha and beta is given by

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  10. Input signal to a common emitter amplifier having a voltage gain of 10...

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  11. In a common base transistor circuit, the current gain is 0.98. On cha...

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  12. For a transistor amplifier power gain and voltage gain are 7.5 and 2.5...

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  13. The input resistance of a common-emitter amplifier is 2 kOmega and a.c...

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  14. In a silicon transistor, a change of 7.89 mA in the emitter current pr...

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  15. The abjoining logic symbol is equivalent to

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  16. Copper has face centred cubic (fc c) lattice with interatomic spacing ...

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  17. Distance between body centered atom and a comer atom in sodium is (whe...

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  19. Which of the following cannot be obtained from an IC?

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  20. Operational amplifier is a

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