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The emitter region in a PNP-junction tra...

The emitter region in a PNP-junction transistor is more heavily doped than the base region, so that

A

The flow across the base region is mainly because of electrons

B

The flow across the base region is mainly because of holes

C

Recombination is decreased in the base region

D

Base current is high

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )-Assignment section -A (Objective Type Question)
  1. The current transfer ratio beta of a transistor is 100. The input resi...

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

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  3. The emitter region in a PNP-junction transistor is more heavily doped ...

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

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

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  6. The relationship between alpha and beta is given by

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

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

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

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

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  11. The abjoining logic symbol is equivalent to

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  12. Which of the following gates corresponds to the truth table given belo...

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  13. Figure shows two capacitors of capacitance 2muF and 4muF and a cell of...

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  14. The combination of gates shown in the circuit is equivalent to

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  15. Find Y

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  16. Write down the boolean experssion for output Y of a system shown in fi...

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

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  18. If a is the length of the side of a cube, the distance between the bod...

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  19. Liquid crystal display monitors are made of

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

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