Recent content by DWarrington

Ok - I will have a go at that and get back to you! he original issue I had was that I thought that a step up transformer increased the voltage and reduced the current. As I increased the number of coils on the secondary coil I would have expected the current to drop. But it didn't - the...

Thanks! I connected the secondary coil was connected to a filament lamp so that provided the resistance.

Thank you once again. This is starting to make sense mathematically. I did an experiment so I was able to see this so it would make even more sense (I am a kinaesthetic learner!). I got a 1200 coil primary coil and attached a 120 secondary coil to it and measured the current and voltage using a...

Thanks for taking the time to help me. I am still confused. I guess I don't get this as much as I thought! I thought that by having a step up transformer this meant that voltage would be increased and that current would be decreased. I thought that was the point of the step up transformer. So...

Hi - thanks for this. So I shouldn't think that a transmission line behaves like a filament lamp then? Is that because it is non-ohmic or is it because a transmission line has negligible resistance compared with a filament? Therefore because the transmission line has zero resistance then...

Hello everyone, I need some help with transformers as I am very confused... I understand the role of a step up transformer - the secondary coil has more turns thus has a higher voltage induced. This in turn reduces the current and the overall heating effect is reduced. This is why transmission...