Flashcards in P2 Physics - ac, mains electricity, wiring a plug, energy transfer Deck (10)
what is alternating current
the current consistently changes direction
what does the mains electricity cable contain?
2 or 3 inner wires
what are the three colours of wire inside a cable?
what does the blue wire mean?
what does the brown wire mean?
what does the green/yellow wire mean?
what are 3 features of the plug?
there is a fuse
covered with plastic, good electrical insulators
has three pins made of brass - good conductor of electricity
where does each wire go?
bLue - Left
bRown - right
sTriped - top
what does the amount of electrical energy transfered to an appliance depend on?
power and length of time it is switched on