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household electricity (the national grid (step up to step down…
household electricity
in a household voltage is ALWAYS 230
household frequency : 50Hz = frequency
the national grid (step up to step down transformer)
transmations cables + pylons insulated reduce heat loss
step down transformer this decrease voltage and increase current
step up transformer which increase voltage and decrease the current so no heat is lost then to
house (consumer)
power plants : turning of turbine connect to a generator which converts electricity then to
plug has three pins
neutral blue left on off the plug
live red/brown is on the right next to the fuse
Earthwire is green and yellow and is in the middle
light switch
double insulated
types of current
D/C = direct current
one direction
A/C = alternating current
changes direction
power equations
E= energy
unit =joules
T=time
unit = seconds
P= power
unit = watts
P=POWER
Unit= watts
V=VOLATGE
Unit = joules
I=CURRENT
Unit = amps
V=voltage
unit =volts
Q=charge
unit = collms
E=energy
unit=joules
