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2) electricity
Circuit Symbols
symbol explained
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Cards (12)
switch: a device for making and breaking the
connection
in an electric circuit
cell: a
single
unit of a
battery
which produces a
small
voltage.
battery: collection of more than
1
cell and
lasts longer
than a single cell before being
depleted
fuse / circuit breaker : automatically
breaks
the circuit if the
current
is
too high
fixed resistors are resistors that have a
fixed resistance value
and
cannot
be changed by the user
(provide a certain amount of
resistance
)
variable resistors: allows user to modify the amount of
resistance
they want in their circuit.
Light dependent resistor
(LED): A resistor that
changes
resistance when
light
hits it.
thermistor:
Resistance
dependent on
temperature
High temperature causes
resistance
to
fall
Lower temperatures causes
resistance
to
increase.
This is used in electronic thermostats
(THERMISTOR INFO)
LED QS. will it be easier or harder for current to flow in the darkness? give reasoning
harder
because of the
high resistance
as there is
no light hitting the LED
in the darkness
Ammeter: measure
current
(amps)
voltmeters:
measures
the
potential difference
(
voltage
)