
Starting
electronics
Quiz
Answers at end of book
1 In the circuit symbol for an
NPN transistor:
a
the
arrow
points out of the
base
b the
arrow
points into the
base
c
the
arrow
points out of the
collector
d
the
arrow
points into the
collector
e b and c
f
all of these
g none of these.
2
In an NPN transistor:
a
a small base
current
causes
a large collector
current
to
flow
b a small collector
current
causes
a large base
current
to
flow
c
a small emitter
current
causes
nothing to
flow
d
nothing happens
e none of these
f
all of these.
3
If an NPN transistor has a
current
gain of 100, and a
base
current
of 1 mA, its
collector
current
will
be:
a
1