switches Flashcards
1
Q
an NPN transistor has 3 terminals:
A
the base, emitter and collector
2
Q
to switch on an NPN transistor, the
A
base-emitter junction is forward biased ,
3
Q
when the voltage at the base is at least +0.7V above the voltage at the emitter, the transistor
A
switches on
4
Q
when the p.d. between the base and emitter falls below around 0.7V the transistor
A
switches off
5
Q
a MOSFET is a
A
metal oxide semiconductor field effect transistor
