electricity
Flow of charges through a conductor
EMF electromotive force
FI
The total energy supplied per
coulomb of charge by the cell
Aconductor.is upofmtalatoms
SIMPLE CIRCUIT electrons are repelled
results in a current
bythenegativesideof
a battery andattracted in thecircuit
to thepositiveside
CONVENTIONAL CURRENT flow ofpositive charge fromthe positiveterminal
of the battery through the circuit to the negative
terminal of thebattery
CIRCUIT path for charges to how
SHORTCIRCUIT directpathfrom the positive terminal of the
battery to the
negative terminal
IJ.iiii.in
m
I
closedcircuit
mung
opencircuit
III
shortcircuit
,CURRENT I
Rate of flow of charge
measuredin Amperes A usingan series
ammeter agghggeg.iq
flowofcharge
noresistance
POTENTIAL DIFFERENCE V
energysuppliedbythebattery thatchargescarry
Work done per unit of positive charge throughthecircuit
measured in volts V using a voltmeter connected in parallel
compares the
potentialdifference
RESISTANCE between twopoints
A materials opposition to the flow of electric current
if thecurrentistoofast itburns thewires
resistorsslowdownthe current 9 5gsag eIm'g p ant iqi tn
measured in Ohms R
Resistance in a conductordependson 4 factors
length longer more resistance
Thickness thicker lessresistance
Temperature hotter more resistance
Material of conductor some materials offergreaterresistance than others
eg copper silver gold no resistance
Tungsten nichrome lots ofresistance
, SERIESCIRCUIT
Componentsare connected
oneaftertheother
PARALLELCIRCUIT
Components areconnected
in separatepaths
I
Flow of charges through a conductor
EMF electromotive force
FI
The total energy supplied per
coulomb of charge by the cell
Aconductor.is upofmtalatoms
SIMPLE CIRCUIT electrons are repelled
results in a current
bythenegativesideof
a battery andattracted in thecircuit
to thepositiveside
CONVENTIONAL CURRENT flow ofpositive charge fromthe positiveterminal
of the battery through the circuit to the negative
terminal of thebattery
CIRCUIT path for charges to how
SHORTCIRCUIT directpathfrom the positive terminal of the
battery to the
negative terminal
IJ.iiii.in
m
I
closedcircuit
mung
opencircuit
III
shortcircuit
,CURRENT I
Rate of flow of charge
measuredin Amperes A usingan series
ammeter agghggeg.iq
flowofcharge
noresistance
POTENTIAL DIFFERENCE V
energysuppliedbythebattery thatchargescarry
Work done per unit of positive charge throughthecircuit
measured in volts V using a voltmeter connected in parallel
compares the
potentialdifference
RESISTANCE between twopoints
A materials opposition to the flow of electric current
if thecurrentistoofast itburns thewires
resistorsslowdownthe current 9 5gsag eIm'g p ant iqi tn
measured in Ohms R
Resistance in a conductordependson 4 factors
length longer more resistance
Thickness thicker lessresistance
Temperature hotter more resistance
Material of conductor some materials offergreaterresistance than others
eg copper silver gold no resistance
Tungsten nichrome lots ofresistance
, SERIESCIRCUIT
Componentsare connected
oneaftertheother
PARALLELCIRCUIT
Components areconnected
in separatepaths
I
