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short notes on npn & pnp transisitor..........

Answer Posted / ramesh behera

Basics Of transistor
In NPN transistor a P type semiconductor is dopped in
between two N type semiconductors,
whereas in PNP a N type semiconductor is dopped in between
two P type
semiconductors,
as per diagrams in NPN an arrow is there on emitter in
outward direction,
whereas in PNP transistor arrow is in inward direction
Ex-
BC -548-NPN B&#8594; C &#8594;E&#8594;

BC 558- PNP B &#8592; C &#8592; E&#8592;

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