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Well done, I'm made up for you.

Hi, I started 6 weeks ago with a Goldenmotor Magic Pie 3 wheel set, a 48v lifepo4 battery pack and charger. Been doing 25-26mph on it on the flat, downhill my fastest was 30.1mph and uphill it went 22-23mph. I have a huge off-road cycling path by mine and wanted to go faster on the straights and...

Oh, I got you wrong. You are just plain stupid thinking that I have "prejudices" about electrical theory and that I want the laws changed to suit me just by not understanding how to apply Ohm's law to cable thickness. God help anyone who asked you a question directly, sarcasm is the lowest form...

My disclaimer still stands. This is not an answer either. Do you think putting up an Ohm's law table (when he already gathers that I understand it) and telling me "I do get it" is a helpful answer? If I did "get it" I wouldn't have joined this forum to ask the question. Teachers don't tell their...

Read, and understand the title of my question before you type drivel.

Thanks very much John, you understood and answered my question perfectly. I find it hard to understand electrical theory by just looking at formulae but it "sinks in" when people explain it to me using analogies.

The first one was, as you already gathered I knew Ohm's law but still told me "I do get it" and put up a picture of Ohm's law. I just didn't know how to apply it to cable thickness. I typed my response to this as you were writing your follow up answer, which I found slightly helpful so thanks...

So basically you're saying that I'd need cable like a hose pipe to power a measly 300w amp at 3v? Yes, I understand Ohm's law but this doesn't answer my original question. Say I have a household cooker running at 3800 watts at 230v= 16 amp cable needed. My bike runs at the same power 3800w but...

I'm trying to buy 3 core flex for to run from my battery to my electric bike wheel. I was thinking of using 2.5mm cable, but its only rated for 20 amps. My bike runs at 87.6v x 45amps= 3942 watts, would it still be ok to use? What I don't understand is why all cable is rated in amps and not...