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When NPN transistor is used as an amplif...

When NPN transistor is used as an amplifier

A

Eelctron move from base to collector

B

Holes move from emitter to base

C

Electrons move from collector base

D

Holes move from base to emitter

Text Solution

Verified by Experts

The correct Answer is:
A
When NPN transistor is used as an amplifier, majority, charge carrier electrons of N-type emitter move from emitter to base and then base to collector.
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NARAYNA-SEMICONDUCTOR ELECTRONICS-EXERCISE-4
  1. Energy band in solids are a consequence of

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  2. When forward bias is applied to a P-N junction, then what happence to ...

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  3. When NPN transistor is used as an amplifier

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  4. For a transistor amplifier in common emitter configuration for load im...

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  5. The electrical conductivity of a semiconductor increases when electrom...

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  6. In a full wave rectifier circuit operating from 50 Hz mains frequency ...

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  7. In a common-base amplifier, the phase difference between the input sig...

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  8. A solid which is not transperent to visible light and whose conductivi...

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  9. If the ratio of the concentration of electron to that of holes in a se...

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  10. In a common base mode of transistor, collector current is 5.488 mA for...

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  11. If the lattice constant of this semiconductor s decreases, then which ...

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  12. In the following, which one of the diodes is reverse biased ?

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  13. The circuit has two oppositely connected ideal diodes in parallel. Wha...

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  14. Carbon, silicon and germanium have four valence electrons each. The mo...

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  15. If a pn junction dide, a square input signal of 10 V is applied as sho...

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  16. In the circuit below, A and B represent two inputs and C represents th...

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  17. A p-n junction (D) shown in the figure can act as a rectifier. An alte...

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  18. The logic circuit shown has the input waveforms 'A' and 'B' as shown. ...

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  19. The combination of gates shown below yields

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  20. Truth table for system of four NAND gates as shown in figure is

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