Elenco Electronics EP-130 - Definition of Terms

-
1
5
6
-
DEFINITI
O
N
O
F TERM
S
A
C
Common abbreviation for
a
l
ternat
i
ng current.
Alternatin
g
Current A current that is constantl
y
chan
g
in
g
.
AM Amplitude modulation. The
amplitude o
f
the radio signal is
varied depending on th
e
in
f
ormation being sent.
Amp Shortened name for ampere.
Ampere (A) The unit o
f
measure
f
or electri
c
current.
C
ommonly shortened
t
o amp.
Am
p
l
i
tude
S
trength or level of something.
Analogy A similarity in some ways.
AND
G
ate A type o
f
di
g
ital circuit whic
h
g
ives a HI
G
H output only if all of
its inputs are HI
G
H.
Antenna Inductors used
f
or sending or
rece
i
v
i
ng ra
di
o s
i
gna
l
s.
Astable Mult
i
v
i
brator A type o
f
transistor
con
f
iguration in which only one
trans
i
stor
i
s on at a t
i
me.
A
t
o
m The smallest
p
article o
f
a
chemical element, made u
p
o
f
e
l
ectrons,
p
rotons, etc.
Aud
i
o
El
ectr
i
ca
l
energy represent-
i
ng
voi
ce
or m
us
i
c
.
Base
The controllin
g
input o
f
an NPN
bi
po
l
ar
j
unct
i
on trans
i
stor.
B
attery
A
d
ev
i
ce w
hi
c
h
uses a c
h
em
i
ca
l
reaction to create an electric
c
h
ar
g
e across a mater
i
a
l
.
Bias The state of the DC voltages
across a
di
o
d
e or trans
i
stor
.
Bipolar Junction A widely used type o
f
Transistor (BJT
)
trans
i
stor.
Bistable
S
witch A t
y
pe of transistor
configuration, also known as the
f
lip-
f
lop.
Capacitance The ability to store electric
c
h
ar
g
e.
Ca
p
acitor
A
n e
l
ectr
i
ca
l
com
p
onent t
h
at
can store electrical
p
ressure
(volta
g
e) for periods of time.
C
arbon
A
chemical element used to
m
a
k
e res
i
stors.
C
lockwise
I
n t
h
e
di
rect
i
on
i
n w
hi
c
h
t
h
e
ha
n
ds
of
a
c
lo
c
k rot
a
t
e
.
C
oil
Wh
en somet
hi
n
g
i
s woun
d
i
n a
spi
ra
l
.
I
n e
l
ectron
i
cs t
hi
s
d
escr
ib
es
i
n
d
uctors, w
hi
c
h
are
c
o
iled
w
i
r
es
.
C
ollector
T
he controlled input o
f
an NPN
bi
po
l
ar
j
unct
i
on trans
i
stor.
C
olor
C
ode
A
method
f
or marking resistor
s
u
s
i
ng co
l
ore
d
b
an
d
s.
C
onductor
A
mater
i
a
l
t
h
at
h
as
l
ow
elec
tr
ical
r
esis
t
a
n
ce
.
C
ounter-
C
lockwise
Opp
osite the direction in which
t
he hands o
f
a clock rotate.
C
urrent
A
measure o
f
how
f
ast electrons
are
f
lowing in a wire or how
f
as
t
w
ater is
f
lowing in a pipe.
D
arl
i
n
g
ton
A
transistor con
f
i
g
uration which
h
as
high
current
g
a
i
n an
d
i
nput
r
es
i
stance.
DC
C
ommon abbreviation for direct
curren
t
.
D
eco
d
e
T
o recover a message.
D
etector
A
device or circuit which
f
inds
s
omet
hi
n
g
.
Di
aphra
g
m
A
f
lexible wall
.
D
iff
e
r
e
nti
a
l P
a
ir
A
t
y
pe o
f
transistor
con
f
i
g
uration.
D
igital Circuit
A
wide ran
g
e of circuits in which
all inputs and outputs have onl
y
t
wo states, such as hi
g
h/low
.
D
iode
A
n electronic device that allows
current to flow in onl
y
one
direction
.
Direct Current A
cu
rr
e
nt th
a
t i
s
c
on
s
t
a
nt
a
n
d
not changing.
Disc Capacitor A type of capacitor that has lo
w
capacitance and is used mostly
in high
f
requency circuits
.