erm guys help! I seem to remember my teacher telling me one thing..and the mark scheme another.
Okay for graphs- or screens for AC and DC.
Hmm, how do we explain this.. But i guess an AC screen, would be like 'hills' one on top and one on the bottom? right?? Ok i know that..
but for DC? I know they 'hills' are all on the top, but are they next to eachother or are gaps left in the middle??? HELP
and exuse my amateur physics <3 haha