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A5) i) The journey of free electrons from the emitter to the collector in a NPN BJT...

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Electrical Engineering

A5)

i) The journey of free electrons from the emitter to thecollector in a NPN BJT consists of two parts. What are they ?

ii)  A NPN BJT is made of two pn junctions,base/emitter junction and base/collector junction. Which pnjunction is thicker and why ?

iii) How can you eliminate a pn junction?

iv) How can you increase or decrease the width of a pnjunction?

Answer & Explanation Solved by verified expert
4.0 Ratings (800 Votes)
1 In npn bjt drift and diffusion are two main components for electron flow from emitter to collector where diffusion current means diffusion of electron holes and drift current is due to applied source ii in BJT two junction are formed one is base emitter junction which is forward biased and another is collector base    See Answer
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