P - P type (holes)
N - N type (electrons)
transistors have tree (or more) connectors:
B - Base
E - Emitter
C - Collector
Tip: E>C always!
transistors that used as switches normally act as two diodes connected together anode and anode or cathode to cathode.
two anodes connected called NPN
and acts as two cathodes connected together
Tip: how to tell which transistor is on the diagram:
Look at arrow
NPN - Not Point iN
PNP - Point iN Please
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