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Energy Band Diagrams

When a NPN tr...

Question

When a NPN transistor is used a amlifier,

A

Electrons moves from base to collector

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B

Holes move from base to collector

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C

Electrons moves from emitter to base

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D

Electrons move from collector to base

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Solution

The correct option is A Electrons moves from base to collector
When NPN transistor is used as an amplifier, majority charge carrier electron of N-type emitter move from emitter to base and then base to collector
hence, electrons moves from base to collector

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